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2003 National Survey on Drug Use & Health:  Detailed Tables

40618

Table  4.1A Numbers (in Thousands) of Persons Who First Used Marijuana in the United States, Their Mean Age at First Use, and Rates of First Use (Per 1,000 Person-Years of Exposure): 1965-2002, Based on 2002 and 2003 NSDUHs
YEAR NUMBER OF INITIATES (1,000s) MEAN
AGE		 AGE-SPECIFIC RATES1
All Ages Under 18 18 or Older 12–17 18–25
1965 794 304 490 18.7 14.3 24.5
1966 785 268 517 19.4 11.9 23.5
1967 1,317 463 854 19.2 21.3 35.3
1968 1,961 757 1,204 18.8 34.2 50.6
1969 2,627 985 1,642 19.0 45.3 71.2
1970 2,858 1,306 1,551 18.6 60.0 71.0
1971 2,951 1,333 1,619 18.4 60.2 73.6
1972 3,134 1,666 1,468 18.3 76.5 63.0
1973 3,460 1,735 1,725 18.8 79.0 76.1
1974 3,275 1,912 1,363 18.5 89.7 58.3
1975 3,332 1,880 1,452 18.3 89.6 66.6
1976 3,236 1,943 1,292 18.4 97.1 59.8
1977 3,327 1,891 1,436 18.6 96.5 68.2
1978 3,225 1,925 1,300 18.4 101.1 66.5
1979 3,028 1,733 1,295 19.1 91.9 61.3
1980 2,555 1,565 990 18.5 83.8 50.6
1981 2,518 1,452 1,066 18.3 80.1 58.7
1982 2,412 1,404 1,008 19.4 78.3 47.7
1983 2,365 1,500 865 18.0 83.1 48.5
1984 2,123 1,379 745 17.9 78.4 40.6
1985 2,182 1,374 809 18.0 78.7 47.6
1986 2,046 1,258 788 17.6 73.5 48.5
1987 1,809 1,116 692 17.8 64.6 43.3
1988 1,695 1,087 608 17.8 64.7 38.1
1989 1,702 994 708 18.3 58.4 41.3
1990 1,505 825 680 18.8 47.2 38.2
1991 1,765 1,042 723 17.8 58.6 42.6
1992 2,013 1,159 854 17.5 63.8 53.5
1993 2,148 1,338 810 17.2 71.9 47.6
1994 2,464 1,616 848 16.8 86.2 51.9
1995 2,698 1,726 973 17.0 90.3 58.3
1996 2,448 1,590 857 16.9 82.6 51.9
1997 2,613 1,725 889 17.2 89.0 52.0
1998 2,519 1,702 816 17.0 86.3 50.8
1999 2,715 1,728 987 17.5 86.5 59.8
2000 2,862 1,966 896 16.9 98.2 56.1
2001 2,806 1,872 934 17.3 93.6 56.3
20022 2,573 1,763 810 17.2 87.0 49.4
*Low precision; no estimate reported.
-- Not available.
NOTE: Comparisons between years, particularly between recent estimates and those from 10 or more years prior, should be made with caution due to potential reporting and other biases.
1 The numerator of each rate is the number of persons in the age group who first used the drug in the year, while the denominator is the person-time exposure of persons in the age group measured in thousands of years.
2 Estimated using 2003 data only.
Source: SAMHSA, Office of Applied Studies, National Survey on Drug Use and Health, 2002 and 2003.

40618

Table  4.2A Numbers (in Thousands) of Persons Who First Used Cocaine in the United States, Their Mean Age at First Use, and Rates of First Use (Per 1,000 Person-Years of Exposure): 1965-2002, Based on 2002 and 2003 NSDUHs
YEAR NUMBER OF INITIATES (1,000s) MEAN
AGE		 AGE-SPECIFIC RATES1
All Ages Under 18 18 or Older 12–17 18–25
1965 62 * 49 * * *
1966 35 * 27 * * *
1967 98 * 98 * * *
1968 185 67 118 19.2 2.9 5.0
1969 210 50 160 21.6 2.0 5.0
1970 288 85 204 18.9 3.7 8.0
1971 424 81 343 20.7 3.3 11.0
1972 433 111 322 19.5 4.5 10.8
1973 592 174 418 20.3 7.2 13.5
1974 885 202 683 21.7 8.3 18.1
1975 876 197 679 20.9 8.1 19.6
1976 1,026 212 813 21.2 8.9 24.3
1977 1,102 264 838 21.2 11.3 23.4
1978 1,329 237 1,092 21.3 10.4 31.7
1979 1,360 277 1,083 21.0 12.4 32.9
1980 1,562 296 1,266 22.4 13.6 33.0
1981 1,543 284 1,259 21.5 13.5 36.3
1982 1,502 299 1,203 22.0 14.3 32.7
1983 1,450 235 1,215 22.1 11.4 35.5
1984 1,363 267 1,097 22.1 13.1 30.8
1985 1,371 289 1,082 22.2 14.4 29.6
1986 1,264 231 1,033 23.2 11.7 28.3
1987 1,173 247 926 22.5 12.6 26.8
1988 1,147 166 982 23.1 8.6 28.3
1989 981 163 818 23.1 8.5 22.8
1990 942 195 748 23.5 10.4 19.7
1991 706 115 591 23.1 6.0 16.6
1992 781 166 615 24.5 8.3 14.3
1993 634 150 484 22.1 7.5 14.3
1994 662 151 511 22.6 6.9 14.4
1995 776 222 554 21.1 10.3 17.2
1996 880 272 608 21.9 12.3 18.4
1997 886 252 634 20.8 11.1 21.3
1998 926 278 648 20.8 12.0 20.9
1999 959 283 677 20.8 12.0 21.5
2000 1,019 309 709 20.9 12.8 22.4
2001 1,167 372 795 20.8 15.3 24.1
20022 1,059 323 736 20.3 13.1 22.6
*Low precision; no estimate reported.
-- Not available.
NOTE: Comparisons between years, particularly between recent estimates and those from 10 or more years prior, should be made with caution due to potential reporting and other biases.
1 The numerator of each rate is the number of persons in the age group who first used the drug in the year, while the denominator is the person-time exposure of persons in the age group measured in thousands of years.
2 Estimated using 2003 data only.
Source: SAMHSA, Office of Applied Studies, National Survey on Drug Use and Health, 2002 and 2003.

40618

Table  4.3A Numbers (in Thousands) of Persons Who First Used Crack in the United States, Their Mean Age at First Use, and Rates of First Use (Per 1,000 Person-Years of Exposure): 1965-2002, Based on 2002 and 2003 NSDUHs
YEAR NUMBER OF INITIATES (1,000s) MEAN
AGE		 AGE-SPECIFIC RATES1
All Ages Under 18 18 or Older 12–17 18–25
1965 * * * * * *
1966 * * * * * *
1967 * * * * * *
1968 * * * * * *
1969 * * * * * *
1970 * * * * * *
1971 * * * * * *
1972 * * * * * *
1973 32 * * * * *
1974 * * * * * *
1975 * * * * * *
1976 * * * * * *
1977 50 * 33 18.0 * 1.0
1978 101 * 79 20.7 * 1.9
1979 86 * 77 22.1 * 1.9
1980 140 * 104 22.6 * 2.0
1981 151 * 135 23.2 * 3.2
1982 180 * 156 25.0 * 2.5
1983 174 22 152 24.0 1.0 2.7
1984 249 27 222 23.5 1.3 4.1
1985 399 46 354 25.2 2.2 6.8
1986 264 36 228 25.9 1.8 3.9
1987 284 40 244 23.4 2.0 5.5
1988 358 41 316 25.5 2.0 5.3
1989 396 10 386 25.2 0.5 7.5
1990 413 29 384 26.9 1.5 5.8
1991 376 37 339 26.7 1.9 5.4
1992 433 43 390 28.0 2.1 4.8
1993 383 42 342 28.8 2.0 4.8
1994 379 46 333 27.6 2.1 4.4
1995 430 49 382 27.3 2.2 6.3
1996 384 66 318 25.8 2.9 5.2
1997 392 63 329 26.2 2.7 6.1
1998 390 81 309 24.3 3.4 6.5
1999 386 65 321 25.7 2.7 6.1
2000 429 89 340 26.9 3.6 5.5
2001 375 84 291 25.0 3.4 5.2
20022 331 74 257 22.9 3.0 5.4
*Low precision; no estimate reported.
-- Not available.
NOTE: Comparisons between years, particularly between recent estimates and those from 10 or more years prior, should be made with caution due to potential reporting and other biases.
1 The numerator of each rate is the number of persons in the age group who first used the drug in the year, while the denominator is the person-time exposure of persons in the age group measured in thousands of years.
2 Estimated using 2003 data only.
Source: SAMHSA, Office of Applied Studies, National Survey on Drug Use and Health, 2002 and 2003.

40618

Table  4.4A Numbers (in Thousands) of Persons Who First Used Heroin in the United States, Their Mean Age at First Use, and Rates of First Use (Per 1,000 Person-Years of Exposure): 1965-2002, Based on 2002 and 2003 NSDUHs
YEAR NUMBER OF INITIATES (1,000s) MEAN
AGE		 AGE-SPECIFIC RATES1
All Ages Under 18 18 or Older 12–17 18–25
1965 * * * * * *
1966 * * * * * *
1967 46 * * * * *
1968 87 * * 16.6 * *
1969 45 * 36 19.4 * 1.4
1970 85 34 * 23.1 1.5 *
1971 104 22 82 19.4 0.9 3.1
1972 122 21 101 20.5 0.9 3.4
1973 207 36 172 20.5 1.3 5.2
1974 185 * 147 20.2 * 4.7
1975 78 * 63 21.3 * 1.8
1976 72 * 66 20.8 * 1.8
1977 109 7 101 23.0 0.3 2.5
1978 90 * 70 20.1 * 2.2
1979 77 16 60 21.1 0.7 1.6
1980 70 * 52 20.7 * 1.5
1981 113 16 97 20.8 0.8 2.7
1982 56 * 52 23.0 * 1.2
1983 82 * 78 23.0 * 1.9
1984 103 * 82 22.7 * 1.5
1985 32 * 29 24.5 * 0.5
1986 88 * 61 22.4 * 1.3
1987 91 * 85 25.3 * 1.8
1988 69 * 67 23.7 * 1.7
1989 97 * 89 25.0 * 1.6
1990 60 * 54 26.6 * *
1991 64 * 62 24.9 * 1.1
1992 96 9 87 27.2 0.5 1.3
1993 64 8 56 25.5 0.4 0.7
1994 78 19 59 25.1 0.9 *
1995 121 36 85 23.9 1.6 0.9
1996 140 26 115 24.1 1.2 2.4
1997 126 37 89 23.1 1.6 2.0
1998 164 29 136 23.4 1.2 3.1
1999 132 37 95 22.8 1.5 2.3
2000 137 43 94 20.6 1.6 2.6
2001 162 39 123 23.6 1.6 2.8
20022 122 26 96 21.4 1.0 2.0
*Low precision; no estimate reported.
-- Not available.
NOTE: Comparisons between years, particularly between recent estimates and those from 10 or more years prior, should be made with caution due to potential reporting and other biases.
1 The numerator of each rate is the number of persons in the age group who first used the drug in the year, while the denominator is the person-time exposure of persons in the age group measured in thousands of years.
2 Estimated using 2003 data only.
Source: SAMHSA, Office of Applied Studies, National Survey on Drug Use and Health, 2002 and 2003.

40618

Table  4.5A Numbers (in Thousands) of Persons Who First Used Hallucinogens in the United States, Their Mean Age at First Use, and Rates of First Use (Per 1,000 Person-Years of Exposure): 1965-2002, Based on 2002 and 2003 NSDUHs
YEAR NUMBER OF INITIATES (1,000s) MEAN
AGE		 AGE-SPECIFIC RATES1
All Ages Under 18 18 or Older 12–17 18–25
1965 70 * 64 20.7 * 3.2
1966 145 70 75 20.2 3.1 2.5
1967 300 112 188 19.0 5.0 7.1
1968 361 183 177 18.7 7.8 6.2
1969 890 320 570 19.1 13.9 21.6
1970 996 416 580 18.5 18.2 22.7
1971 988 429 560 18.3 18.6 21.1
1972 1,059 566 493 17.6 24.2 18.5
1973 871 454 417 17.8 19.1 16.1
1974 978 488 491 18.4 20.5 17.3
1975 981 495 486 18.0 20.9 17.4
1976 970 466 504 18.8 20.1 17.6
1977 904 409 495 18.5 17.9 18.3
1978 942 449 493 18.0 19.6 17.8
1979 982 492 490 18.5 22.4 15.8
1980 981 431 550 18.7 20.1 19.0
1981 960 379 581 19.3 18.3 19.1
1982 1,025 384 641 20.2 18.5 19.9
1983 716 288 428 18.7 13.9 15.2
1984 760 298 462 19.4 14.5 15.3
1985 716 286 430 19.0 13.8 14.9
1986 761 310 451 19.5 15.8 14.4
1987 770 351 419 19.2 18.1 14.6
1988 802 315 487 19.2 16.7 17.4
1989 785 299 487 19.0 15.9 17.5
1990 704 279 424 19.6 14.9 14.2
1991 762 329 434 19.1 17.4 15.2
1992 700 324 375 18.9 16.5 13.0
1993 813 379 434 19.2 19.0 14.2
1994 920 476 444 18.0 23.3 17.1
1995 993 492 500 18.2 23.3 19.4
1996 1,079 519 561 19.1 24.0 21.4
1997 1,117 520 597 19.0 23.2 23.2
1998 1,192 533 659 19.0 23.1 24.4
1999 1,449 640 809 18.7 27.6 32.0
2000 1,564 728 835 18.7 30.8 31.9
2001 1,619 725 894 19.3 30.3 31.6
20022 1,110 554 556 18.3 22.6 20.3
*Low precision; no estimate reported.
-- Not available.
NOTE: Comparisons between years, particularly between recent estimates and those from 10 or more years prior, should be made with caution due to potential reporting and other biases.
1 The numerator of each rate is the number of persons in the age group who first used the drug in the year, while the denominator is the person-time exposure of persons in the age group measured in thousands of years.
2 Estimated using 2003 data only.
Source: SAMHSA, Office of Applied Studies, National Survey on Drug Use and Health, 2002 and 2003.

40618

Table  4.6A Numbers (in Thousands) of Persons Who First Used LSD in the United States, Their Mean Age at First Use, and Rates of First Use (Per 1,000 Person-Years of Exposure): 1965-2002, Based on 2002 and 2003 NSDUHs
YEAR NUMBER OF INITIATES (1,000s) MEAN
AGE		 AGE-SPECIFIC RATES1
All Ages Under 18 18 or Older 12–17 18–25
1965 40 * 28 * * 1.4
1966 93 43 50 22.3 2.0 1.3
1967 178 65 113 19.4 2.7 4.0
1968 337 199 138 18.1 9.1 4.6
1969 677 228 448 19.4 9.7 17.0
1970 816 371 445 18.1 16.1 17.6
1971 810 318 492 18.8 13.7 17.2
1972 894 470 424 17.6 20.1 15.7
1973 854 437 417 18.3 18.3 15.0
1974 777 398 380 18.1 16.8 13.8
1975 700 364 336 18.3 15.4 11.2
1976 595 264 330 18.0 11.3 11.8
1977 736 329 406 18.8 14.2 14.3
1978 651 268 383 18.4 11.8 13.1
1979 815 396 419 18.4 17.7 13.1
1980 795 381 414 18.4 17.7 13.8
1981 749 315 434 19.1 15.1 13.9
1982 739 310 430 19.1 14.7 13.2
1983 554 229 326 18.8 11.1 11.2
1984 601 222 379 19.6 10.9 11.9
1985 567 246 320 19.4 11.9 9.9
1986 495 211 285 19.2 10.6 9.2
1987 552 326 226 18.2 16.7 7.4
1988 627 277 350 18.5 14.6 12.5
1989 620 236 384 19.2 12.6 12.4
1990 579 263 316 19.3 14.1 10.5
1991 632 296 337 18.6 15.7 12.3
1992 631 292 340 18.6 15.1 12.1
1993 553 263 290 18.7 13.4 9.9
1994 736 413 323 17.8 20.2 12.0
1995 766 405 361 17.6 19.3 14.6
1996 844 422 422 18.3 19.4 16.2
1997 800 415 384 18.2 18.5 14.9
1998 735 403 332 18.0 17.6 13.1
1999 798 413 385 17.9 17.6 14.5
2000 872 442 430 18.1 18.6 16.0
2001 631 334 296 17.8 13.8 11.0
20022 272 170 102 17.1 6.9 3.9
*Low precision; no estimate reported.
-- Not available.
NOTE: Comparisons between years, particularly between recent estimates and those from 10 or more years prior, should be made with caution due to potential reporting and other biases.
1 The numerator of each rate is the number of persons in the age group who first used the drug in the year, while the denominator is the person-time exposure of persons in the age group measured in thousands of years.
2 Estimated using 2003 data only.
Source: SAMHSA, Office of Applied Studies, National Survey on Drug Use and Health, 2002 and 2003.

40618

Table  4.7A Numbers (in Thousands) of Persons Who First Used PCP in the United States, Their Mean Age at First Use, and Rates of First Use (Per 1,000 Person-Years of Exposure): 1965-2002, Based on 2002 and 2003 NSDUHs
YEAR NUMBER OF INITIATES (1,000s) MEAN
AGE		 AGE-SPECIFIC RATES1
All Ages Under 18 18 or Older 12–17 18–25
1965 * * * * * *
1966 * * * * * *
1967 * * * * * *
1968 * * * * * *
1969 71 49 * 17.7 2.1 *
1970 195 84 111 18.2 3.6 4.0
1971 231 118 113 18.1 5.0 4.3
1972 370 196 174 18.3 8.2 5.4
1973 341 144 197 18.6 6.0 7.0
1974 449 221 228 17.8 9.0 7.5
1975 440 236 205 18.4 9.8 5.9
1976 505 248 257 18.9 10.4 7.5
1977 432 159 273 19.6 6.8 8.0
1978 404 148 256 20.2 6.4 6.8
1979 332 135 197 18.9 6.0 5.9
1980 323 114 208 20.4 5.1 5.5
1981 255 78 177 20.0 3.7 5.1
1982 238 58 180 20.5 2.7 5.2
1983 152 62 90 18.8 3.0 2.7
1984 123 24 99 19.8 1.2 3.1
1985 122 46 75 19.1 2.3 2.2
1986 139 35 104 20.0 1.7 3.0
1987 108 44 64 19.8 2.2 1.8
1988 107 43 65 19.8 2.2 1.7
1989 131 46 85 20.6 2.4 2.1
1990 83 45 38 22.2 2.3 0.6
1991 84 35 49 21.0 1.8 1.2
1992 88 29 59 18.8 1.5 2.1
1993 68 40 28 19.2 2.0 0.5
1994 104 67 36 16.8 3.3 1.3
1995 174 73 100 18.7 3.4 3.5
1996 157 84 73 17.9 3.6 2.2
1997 131 65 67 17.8 2.7 2.4
1998 119 70 48 17.6 3.0 1.5
1999 158 89 68 17.6 3.6 2.4
2000 174 119 55 16.6 4.8 1.9
2001 191 106 85 17.8 4.2 2.5
20022 131 85 46 16.7 3.4 1.5
*Low precision; no estimate reported.
-- Not available.
NOTE: Comparisons between years, particularly between recent estimates and those from 10 or more years prior, should be made with caution due to potential reporting and other biases.
1 The numerator of each rate is the number of persons in the age group who first used the drug in the year, while the denominator is the person-time exposure of persons in the age group measured in thousands of years.
2 Estimated using 2003 data only.
Source: SAMHSA, Office of Applied Studies, National Survey on Drug Use and Health, 2002 and 2003.

40618

Table  4.8A Numbers (in Thousands) of Persons Who First Used Ecstasy in the United States, Their Mean Age at First Use, and Rates of First Use (Per 1,000 Person-Years of Exposure): 1965-2002, Based on 2002 and 2003 NSDUHs
YEAR NUMBER OF INITIATES (1,000s) MEAN
AGE		 AGE-SPECIFIC RATES1
All Ages Under 18 18 or Older 12–17 18–25
1965 * * * * * *
1966 * * * * * *
1967 * * * * * *
1968 * * * * * *
1969 * * * * * *
1970 * * * * * *
1971 * * * * * *
1972 * * * * * *
1973 * * * * * *
1974 * * * * * *
1975 * * * * * *
1976 55 * 45 22.3 * *
1977 * * * * * *
1978 * * * * * *
1979 39 * 36 23.2 * 0.6
1980 32 * 25 23.8 * *
1981 33 * 33 * * 0.9
1982 28 * * * * *
1983 79 * 68 25.8 * 1.2
1984 90 * 90 26.1 * 1.5
1985 148 15 133 22.3 0.7 3.2
1986 152 23 130 23.0 1.1 3.1
1987 197 21 176 22.9 1.0 5.2
1988 206 42 164 23.4 2.2 3.8
1989 200 31 169 22.4 1.6 4.3
1990 228 22 206 23.7 1.1 4.3
1991 165 19 146 22.5 0.9 3.7
1992 202 27 175 22.5 1.3 4.3
1993 199 38 161 22.8 1.8 4.4
1994 258 59 198 23.0 2.8 5.0
1995 371 68 303 21.5 3.1 9.1
1996 406 102 304 23.8 4.4 7.9
1997 566 124 442 22.2 5.4 12.3
1998 819 167 652 21.3 7.1 19.3
1999 1,386 328 1,058 21.5 13.8 31.1
2000 1,737 465 1,272 21.2 19.2 38.0
2001 1,786 530 1,256 21.7 21.9 34.6
20022 1,078 371 707 20.7 14.9 19.9
*Low precision; no estimate reported.
-- Not available.
NOTE: Comparisons between years, particularly between recent estimates and those from 10 or more years prior, should be made with caution due to potential reporting and other biases.
1 The numerator of each rate is the number of persons in the age group who first used the drug in the year, while the denominator is the person-time exposure of persons in the age group measured in thousands of years.
2 Estimated using 2003 data only.
Source: SAMHSA, Office of Applied Studies, National Survey on Drug Use and Health, 2002 and 2003.

40618

Table  4.9A Numbers (in Thousands) of Persons Who First Used Inhalants in the United States, Their Mean Age at First Use, and Rates of First Use (Per 1,000 Person-Years of Exposure): 1965-2002, Based on 2002 and 2003 NSDUHs
YEAR NUMBER OF INITIATES (1,000s) MEAN
AGE		 AGE-SPECIFIC RATES1
All Ages Under 18 18 or Older 12–17 18–25
1965 79 79 * 13.5 3.6 *
1966 198 161 37 15.1 6.6 *
1967 140 88 52 16.9 3.2 1.7
1968 240 163 77 17.3 6.7 *
1969 264 184 80 16.3 8.1 3.0
1970 298 216 81 15.8 7.9 3.0
1971 331 232 99 15.6 9.2 3.8
1972 343 239 104 16.5 9.6 3.3
1973 396 220 176 18.6 9.0 4.7
1974 502 257 245 18.2 9.3 7.4
1975 498 317 181 17.2 12.5 5.9
1976 663 319 344 18.5 13.3 10.1
1977 785 306 479 19.0 12.5 13.7
1978 666 365 302 18.1 15.2 9.2
1979 851 454 398 18.2 20.0 11.2
1980 722 403 320 18.6 18.5 8.7
1981 623 309 314 18.6 13.9 8.5
1982 531 282 249 18.4 12.5 6.3
1983 583 329 254 18.3 14.5 6.4
1984 554 336 218 17.8 15.8 6.2
1985 532 267 265 19.0 13.1 7.6
1986 571 346 225 18.8 16.6 5.7
1987 583 336 247 18.1 15.8 7.2
1988 614 357 257 17.5 17.5 8.2
1989 518 253 265 18.4 12.2 9.0
1990 472 246 226 18.1 12.1 7.8
1991 476 288 189 17.9 14.2 5.2
1992 576 368 208 16.8 17.6 7.3
1993 584 350 234 17.8 16.6 7.3
1994 594 405 189 16.5 17.9 7.0
1995 681 416 265 17.0 17.8 9.7
1996 694 414 280 17.1 16.1 9.6
1997 751 476 274 16.5 17.5 10.6
1998 846 513 333 17.5 18.8 11.5
1999 946 617 329 16.4 21.2 11.8
2000 1,122 781 341 16.3 27.5 11.1
2001 1,117 796 320 15.9 30.4 11.8
20022 1,033 802 231 15.6 31.2 8.1
*Low precision; no estimate reported.
-- Not available.
NOTE: Comparisons between years, particularly between recent estimates and those from 10 or more years prior, should be made with caution due to potential reporting and other biases.
1 The numerator of each rate is the number of persons in the age group who first used the drug in the year, while the denominator is the person-time exposure of persons in the age group measured in thousands of years.
2 Estimated using 2003 data only.
Source: SAMHSA, Office of Applied Studies, National Survey on Drug Use and Health, 2002 and 2003.

40618

Table  4.10A Numbers (in Thousands) of Persons Who First Used Pain Relievers Nonmedically in the United States, Their Mean Age at First Use, and Rates of First Use (Per 1,000 Person-Years of Exposure): 1965-2002, Based on 2002 and 2003 NSDUHs
YEAR NUMBER OF INITIATES (1,000s) MEAN
AGE		 AGE-SPECIFIC RATES1
All Ages Under 18 18 or Older 12–17 18–25
1965 92 38 * * * *
1966 41 * * 23.8 * *
1967 86 * 51 21.7 * 1.8
1968 261 79 182 19.6 3.2 7.8
1969 321 179 142 19.0 7.7 4.3
1970 336 128 208 20.3 4.5 5.9
1971 405 198 207 18.6 8.2 6.7
1972 325 139 186 19.3 5.6 5.8
1973 447 190 257 19.4 7.6 7.6
1974 525 200 325 20.1 7.2 8.4
1975 482 186 297 20.2 7.2 7.9
1976 467 165 303 20.3 6.9 8.2
1977 533 140 393 20.7 5.8 11.5
1978 522 194 329 20.4 8.2 8.6
1979 487 217 270 20.3 9.7 6.7
1980 485 171 313 22.1 7.4 5.7
1981 497 138 359 21.4 6.3 8.5
1982 422 156 266 21.3 6.8 5.7
1983 628 176 452 21.8 8.0 10.6
1984 503 113 390 24.8 5.2 7.9
1985 511 131 380 22.2 5.7 8.9
1986 572 96 476 24.3 4.5 10.7
1987 630 135 495 24.9 5.9 9.7
1988 552 101 451 24.4 4.8 9.5
1989 670 147 523 24.2 7.2 11.3
1990 573 108 465 23.6 5.1 10.2
1991 629 166 463 23.6 7.9 10.2
1992 785 171 614 25.1 7.4 11.2
1993 689 192 498 22.4 8.4 12.4
1994 949 269 680 23.3 11.8 14.8
1995 896 293 603 22.3 12.0 15.0
1996 1,125 380 745 21.4 15.6 21.5
1997 1,408 470 938 22.0 18.8 24.9
1998 1,649 583 1,066 23.2 22.6 24.6
1999 1,925 726 1,199 22.4 28.3 30.1
2000 2,475 952 1,523 22.1 38.4 39.2
2001 2,490 1,105 1,385 21.0 45.9 36.2
20022 2,471 1,098 1,373 22.2 46.2 32.8
*Low precision; no estimate reported.
-- Not available.
NOTE: Comparisons between years, particularly between recent estimates and those from 10 or more years prior, should be made with caution due to potential reporting and other biases.
1 The numerator of each rate is the number of persons in the age group who first used the drug in the year, while the denominator is the person-time exposure of persons in the age group measured in thousands of years.
2 Estimated using 2003 data only.
Source: SAMHSA, Office of Applied Studies, National Survey on Drug Use and Health, 2002 and 2003.

40618

Table  4.11A Numbers (in Thousands) of Persons Who First Used Tranquilizers Nonmedically in the United States, Their Mean Age at First Use, and Rates of First Use (Per 1,000 Person-Years of Exposure): 1965-2002, Based on 2002 and 2003 NSDUHs
YEAR NUMBER OF INITIATES (1,000s) MEAN
AGE		 AGE-SPECIFIC RATES1
All Ages Under 18 18 or Older 12–17 18–25
1965 73 * 42 17.2 * *
1966 88 * * 19.1 * *
1967 101 * 97 23.2 * 2.8
1968 142 27 115 20.3 1.2 4.4
1969 247 115 131 19.5 4.9 3.8
1970 216 97 119 19.3 4.2 3.7
1971 227 125 102 17.9 5.3 3.2
1972 393 147 246 19.9 6.2 7.1
1973 466 145 321 20.6 5.9 8.6
1974 477 238 239 18.7 9.7 7.1
1975 522 169 353 20.4 7.1 9.3
1976 535 229 305 19.4 9.4 8.7
1977 459 169 290 20.7 7.1 7.7
1978 406 100 306 21.7 4.3 7.9
1979 463 176 287 21.1 7.7 6.9
1980 385 128 257 20.6 5.9 6.6
1981 436 130 307 21.2 6.1 8.1
1982 436 99 337 22.1 4.7 8.2
1983 361 61 300 22.1 2.5 7.2
1984 447 84 363 24.1 4.0 6.8
1985 465 98 367 25.3 4.8 6.7
1986 367 86 281 25.4 4.3 5.5
1987 393 54 339 24.7 2.4 6.9
1988 430 60 370 24.9 3.0 7.9
1989 441 64 378 24.9 3.2 8.1
1990 406 91 314 24.4 4.8 6.7
1991 451 63 388 26.7 3.1 6.5
1992 431 70 361 27.5 3.0 5.8
1993 557 124 433 26.9 6.0 6.8
1994 469 103 366 24.8 4.8 7.3
1995 604 155 449 25.0 7.1 8.2
1996 651 174 477 22.8 7.6 11.6
1997 658 195 463 23.5 8.2 10.8
1998 904 266 638 24.1 11.1 13.3
1999 929 283 646 22.8 11.7 14.5
2000 1,442 384 1,059 25.2 15.7 22.2
2001 1,266 412 854 23.2 16.8 18.6
20022 1,194 386 809 23.5 15.8 16.8
*Low precision; no estimate reported.
-- Not available.
NOTE: Comparisons between years, particularly between recent estimates and those from 10 or more years prior, should be made with caution due to potential reporting and other biases.
1 The numerator of each rate is the number of persons in the age group who first used the drug in the year, while the denominator is the person-time exposure of persons in the age group measured in thousands of years.
2 Estimated using 2003 data only.
Source: SAMHSA, Office of Applied Studies, National Survey on Drug Use and Health, 2002 and 2003.

40618

Table  4.12A Numbers (in Thousands) of Persons Who First Used Stimulants Nonmedically in the United States, Their Mean Age at First Use, and Rates of First Use (Per 1,000 Person-Years of Exposure): 1965-2002, Based on 2002 and 2003 NSDUHs
YEAR NUMBER OF INITIATES (1,000s) MEAN
AGE		 AGE-SPECIFIC RATES1
All Ages Under 18 18 or Older 12–17 18–25
1965 189 * 148 20.4 * 5.0
1966 206 41 166 19.5 1.9 7.7
1967 217 105 112 18.9 4.7 4.0
1968 382 155 228 18.3 7.1 9.9
1969 472 202 270 18.6 9.0 10.7
1970 587 240 347 18.9 10.5 12.8
1971 608 218 390 18.8 9.2 13.8
1972 675 300 375 18.8 12.7 12.9
1973 557 241 317 19.0 10.2 10.3
1974 563 235 328 18.5 9.8 11.8
1975 596 255 342 18.7 10.3 11.0
1976 641 291 351 19.6 12.3 10.9
1977 720 336 384 18.4 14.4 12.4
1978 571 225 346 18.8 9.9 10.9
1979 603 271 332 18.3 12.2 10.5
1980 699 288 412 19.0 13.3 13.0
1981 633 222 411 20.0 10.5 11.1
1982 599 275 324 19.0 12.7 9.1
1983 516 157 359 21.2 7.6 8.2
1984 426 151 275 19.8 7.4 7.8
1985 381 130 251 20.3 6.5 6.9
1986 364 135 229 19.8 6.8 6.9
1987 379 130 248 21.3 6.6 6.1
1988 365 143 222 20.0 7.4 6.2
1989 368 102 266 20.8 4.9 7.7
1990 342 107 235 21.7 5.4 6.0
1991 288 86 202 21.9 4.2 4.9
1992 306 132 174 21.2 6.5 3.9
1993 443 142 301 20.6 7.0 8.5
1994 432 187 245 20.0 8.7 6.6
1995 564 240 324 20.5 10.9 9.3
1996 636 242 394 20.7 10.7 10.9
1997 595 253 342 20.4 10.8 9.7
1998 687 292 394 20.5 12.1 10.6
1999 790 333 457 20.7 13.4 11.3
2000 850 387 463 20.0 15.4 12.3
2001 875 438 437 18.8 17.7 12.9
20022 761 385 376 19.8 15.2 9.2
*Low precision; no estimate reported.
-- Not available.
NOTE: Comparisons between years, particularly between recent estimates and those from 10 or more years prior, should be made with caution due to potential reporting and other biases.
1 The numerator of each rate is the number of persons in the age group who first used the drug in the year, while the denominator is the person-time exposure of persons in the age group measured in thousands of years.
2 Estimated using 2003 data only.
Source: SAMHSA, Office of Applied Studies, National Survey on Drug Use and Health, 2002 and 2003.

40618

Table  4.13A Numbers (in Thousands) of Persons Who First Used Methamphetamines Nonmedically in the United States, Their Mean Age at First Use, and Rates of First Use (Per 1,000 Person-Years of Exposure): 1965-2002, Based on 2002 and 2003 NSDUHs
YEAR NUMBER OF INITIATES (1,000s) MEAN
AGE		 AGE-SPECIFIC RATES1
All Ages Under 18 18 or Older 12–17 18–25
1965 43 * * * * *
1966 89 * 59 19.4 * 2.8
1967 92 44 * 17.7 2.0 *
1968 142 61 81 18.1 2.7 3.5
1969 257 125 131 18.5 5.5 4.9
1970 268 99 169 18.9 4.3 6.4
1971 469 143 326 19.1 5.9 11.5
1972 334 129 205 18.3 5.4 7.7
1973 422 160 262 19.3 6.7 8.2
1974 346 139 207 18.8 5.7 7.2
1975 403 162 241 18.8 6.7 8.0
1976 404 207 197 18.7 8.6 6.0
1977 487 228 258 18.6 9.7 7.8
1978 312 122 191 19.2 5.3 6.0
1979 478 237 241 18.0 10.6 7.4
1980 373 165 207 18.5 7.5 6.2
1981 414 138 276 20.2 6.5 6.9
1982 403 147 256 19.2 6.8 7.6
1983 377 117 260 20.2 5.6 6.9
1984 327 114 213 19.5 5.5 6.2
1985 315 110 205 20.6 5.4 5.3
1986 325 112 214 19.9 5.6 6.3
1987 315 102 213 21.4 5.1 5.0
1988 274 83 191 21.1 4.3 5.1
1989 279 68 211 21.6 3.5 5.9
1990 217 46 171 22.0 2.3 4.4
1991 235 53 182 22.1 2.7 4.8
1992 208 88 120 20.6 4.4 2.9
1993 348 108 240 21.1 5.3 6.6
1994 287 110 177 20.3 5.3 5.0
1995 366 140 226 20.7 6.4 6.3
1996 357 137 220 20.7 6.0 6.3
1997 331 126 205 20.3 5.5 5.7
1998 372 145 227 21.3 6.2 5.4
1999 346 121 225 21.4 5.0 5.7
2000 344 155 189 19.7 6.4 4.9
2001 364 167 197 18.8 6.7 5.9
20022 323 143 179 20.2 5.6 3.7
*Low precision; no estimate reported.
-- Not available.
NOTE: Comparisons between years, particularly between recent estimates and those from 10 or more years prior, should be made with caution due to potential reporting and other biases.
1 The numerator of each rate is the number of persons in the age group who first used the drug in the year, while the denominator is the person-time exposure of persons in the age group measured in thousands of years.
2 Estimated using 2003 data only.
Source: SAMHSA, Office of Applied Studies, National Survey on Drug Use and Health, 2002 and 2003.

40618

Table  4.14A Numbers (in Thousands) of Persons Who First Used Sedatives Nonmedically in the United States, Their Mean Age at First Use, and Rates of First Use (Per 1,000 Person-Years of Exposure): 1965-2002, Based on 2002 and 2003 NSDUHs
YEAR NUMBER OF INITIATES (1,000s) MEAN
AGE		 AGE-SPECIFIC RATES1
All Ages Under 18 18 or Older 12–17 18–25
1965 45 38 * * * *
1966 60 * 48 20.0 * 1.6
1967 147 50 97 18.8 2.1 4.0
1968 199 87 111 18.5 4.0 4.4
1969 281 180 101 18.8 7.9 3.0
1970 315 178 137 18.0 7.7 4.6
1971 450 197 253 19.0 8.4 8.3
1972 400 151 248 18.4 6.4 9.2
1973 519 290 229 18.0 11.6 7.8
1974 592 231 362 18.7 9.6 12.2
1975 479 188 291 19.9 7.8 9.1
1976 459 271 188 17.8 11.4 6.1
1977 542 153 389 19.8 6.5 11.6
1978 439 206 233 19.7 9.0 5.6
1979 508 211 298 19.2 9.4 9.1
1980 379 138 241 19.8 6.3 6.5
1981 413 116 296 22.1 5.5 7.5
1982 342 119 223 21.4 5.6 5.4
1983 274 58 216 20.7 2.8 5.6
1984 183 40 143 21.7 1.9 3.6
1985 137 40 97 23.2 2.0 2.1
1986 81 * 58 22.8 * 1.5
1987 116 * 109 29.2 * 1.3
1988 75 * 66 24.3 * 0.9
1989 91 24 67 22.6 1.1 1.4
1990 104 21 84 24.6 0.9 1.5
1991 72 21 51 24.4 1.0 0.9
1992 108 37 71 23.8 1.7 1.3
1993 97 32 65 23.4 1.6 1.6
1994 109 25 85 24.3 1.1 1.5
1995 104 29 75 21.8 1.3 1.7
1996 134 46 88 23.6 1.8 2.0
1997 135 45 90 21.8 1.8 2.0
1998 158 55 103 25.9 2.2 2.2
1999 191 53 137 27.0 2.0 2.2
2000 224 75 149 23.5 2.8 2.4
2001 234 90 145 24.9 3.3 2.0
20022 225 79 146 29.9 3.0 1.5
*Low precision; no estimate reported.
-- Not available.
NOTE: Comparisons between years, particularly between recent estimates and those from 10 or more years prior, should be made with caution due to potential reporting and other biases.
1 The numerator of each rate is the number of persons in the age group who first used the drug in the year, while the denominator is the person-time exposure of persons in the age group measured in thousands of years.
2 Estimated using 2003 data only.
Source: SAMHSA, Office of Applied Studies, National Survey on Drug Use and Health, 2002 and 2003.

40618

Table  4.15A Numbers (in Thousands) of Persons Who First Used Alcohol in the United States, Their Mean Age at First Use, and Rates of First Use (Per 1,000 Person-Years of Exposure): 1965-2002, Based on 2002 and 2003 NSDUHs
YEAR NUMBER OF INITIATES (1,000s) MEAN
AGE		 AGE-SPECIFIC RATES1
All Ages Under 18 18 or Older 12–17 18–25
1965 3,283 1,824 1,459 17.4 95.6 224.2
1966 2,954 1,698 1,256 16.9 90.4 200.7
1967 3,609 2,013 1,595 17.1 108.2 237.0
1968 3,648 2,204 1,444 17.0 116.2 207.1
1969 3,955 2,217 1,738 17.1 115.7 270.4
1970 4,064 2,408 1,656 17.0 122.7 265.6
1971 3,918 2,430 1,488 16.8 122.6 237.4
1972 4,320 2,767 1,553 16.9 143.1 258.2
1973 4,140 2,676 1,464 16.5 141.9 250.2
1974 4,053 2,759 1,294 16.6 147.8 225.9
1975 3,999 2,630 1,368 16.8 140.5 228.2
1976 3,900 2,603 1,298 16.7 142.5 219.0
1977 4,103 2,850 1,253 16.4 161.4 224.2
1978 3,938 2,734 1,204 16.3 159.5 215.8
1979 3,959 2,773 1,186 16.3 169.6 218.0
1980 3,596 2,381 1,215 16.8 148.5 217.0
1981 3,744 2,526 1,218 16.5 161.2 225.0
1982 3,642 2,515 1,127 16.6 159.8 208.1
1983 3,219 2,195 1,024 16.6 140.0 201.0
1984 3,407 2,409 997 16.3 157.4 202.0
1985 3,288 2,233 1,055 16.8 147.9 219.7
1986 3,207 2,359 848 16.0 159.8 178.6
1987 3,086 2,101 985 16.6 145.9 197.6
1988 3,046 2,098 949 16.3 147.4 187.9
1989 3,220 2,121 1,099 16.7 151.8 210.5
1990 2,884 1,950 934 16.5 136.3 185.6
1991 2,961 1,887 1,074 16.7 127.0 218.6
1992 3,182 2,114 1,068 16.9 137.3 206.4
1993 3,190 2,234 956 16.4 141.3 190.2
1994 3,252 2,283 969 16.0 137.6 198.2
1995 3,278 2,258 1,021 16.2 133.5 207.3
1996 3,462 2,358 1,104 16.5 134.6 218.8
1997 3,697 2,635 1,062 16.1 146.0 214.5
1998 3,949 2,709 1,239 16.5 150.6 236.7
1999 4,258 3,007 1,251 16.3 165.5 239.9
2000 5,079 3,664 1,415 16.1 215.1 287.7
20012   5,259 3,830 1,429 16.2 225.7 288.8
20022 -- -- 1,398 -- 219.1 305.3
*Low precision; no estimate reported.
-- Not available.
NOTE: Comparisons between years, particularly between recent estimates and those from 10 or more years prior, should be made with caution due to potential reporting and other biases.
1 The numerator of each rate is the number of persons in the age group who first used the drug in the year, while the denominator is the person-time exposure of persons in the age group measured in thousands of years.
2 Estimated using 2003 data only.
Source: SAMHSA, Office of Applied Studies, National Survey on Drug Use and Health, 2002 and 2003.

40618

Table  4.16A Numbers (in Thousands) of Persons Who First Used Alcohol in the United States by Underage and Legal Drinking Age Groups, Their Mean Age at First Use, and Rates of First Use (Per 1,000 Person-Years of Exposure): 1965-2002, Based on 2002 and 2003 NSDUHs
YEAR NUMBER OF INITIATES (1,000s) MEAN
AGE		 AGE-SPECIFIC RATES1
All Ages Under 21 21 or Older 12–20 21–25
1965 3,283 2,694 589 17.4 123.1 172.2
1966 2,954 2,571 383 16.9 117.2 133.9
1967 3,609 3,123 486 17.1 142.0 148.9
1968 3,648 3,149 499 17.0 141.4 134.8
1969 3,955 3,257 698 17.1 146.4 228.3
1970 4,064 3,344 720 17.0 148.5 234.0
1971 3,918 3,261 657 16.8 144.4 197.3
1972 4,320 3,617 702 16.9 163.0 232.0
1973 4,140 3,712 428 16.5 171.5 135.1
1974 4,053 3,581 472 16.6 167.5 154.5
1975 3,999 3,456 543 16.8 161.1 165.3
1976 3,900 3,426 474 16.7 163.2 142.4
1977 4,103 3,640 463 16.4 179.3 153.9
1978 3,938 3,471 467 16.3 176.3 152.9
1979 3,959 3,545 414 16.3 187.6 142.0
1980 3,596 3,168 428 16.8 171.4 127.4
1981 3,744 3,350 393 16.5 185.3 122.3
1982 3,642 3,211 431 16.6 178.2 125.5
1983 3,219 2,814 405 16.6 156.9 140.1
1984 3,407 3,022 384 16.3 172.6 136.4
1985 3,288 2,869 419 16.8 167.4 148.9
1986 3,207 2,900 307 16.0 171.5 113.4
1987 3,086 2,669 417 16.6 160.3 150.3
1988 3,046 2,638 408 16.3 157.3 164.3
1989 3,220 2,763 457 16.7 167.3 169.8
1990 2,884 2,472 412 16.5 147.7 162.3
1991 2,961 2,467 495 16.7 144.4 194.5
1992 3,182 2,647 535 16.9 149.7 189.1
1993 3,190 2,766 424 16.4 152.2 160.6
1994 3,252 2,871 381 16.0 151.9 153.5
1995 3,278 2,857 422 16.2 148.0 172.9
1996 3,462 3,011 451 16.5 152.3 165.8
1997 3,697 3,281 416 16.1 160.5 169.7
1998 3,949 3,493 455 16.5 170.8 163.1
1999 4,258 3,752 506 16.3 181.3 190.9
2000 5,079 4,526 554 16.1 231.1 235.8
20012   5,259 4,654 605 16.2 239.2 244.4
20022 -- -- 539 -- 239.4 224.6
*Low precision; no estimate reported.
-- Not available.
NOTE: Comparisons between years, particularly between recent estimates and those from 10 or more years prior, should be made with caution due to potential reporting and other biases.
1 The numerator of each rate is the number of persons in the age group who first used the drug in the year, while the denominator is the person-time exposure of persons in the age group measured in thousands of years.
2 Estimated using 2003 data only.
Source: SAMHSA, Office of Applied Studies, National Survey on Drug Use and Health, 2002 and 2003.

40618

Table  4.17A Numbers (in Thousands) of Persons Who First Used Any Cigarettes in the United States, Their Mean Age at First Use, and Rates of First Use (Per 1,000 Person-Years of Exposure): 1965-2002, Based on 2002 and 2003 NSDUHs
YEAR NUMBER OF INITIATES (1,000s) MEAN
AGE		 AGE-SPECIFIC RATES1
All Ages Under 18 18 or Older 12–17 18–25
1965 2,771 2,145 626 15.0 121.6 101.5
1966 2,621 1,907 714 15.4 109.9 101.3
1967 3,087 2,368 719 15.4 140.1 96.6
1968 3,020 2,192 828 15.5 123.7 108.5
1969 2,984 2,340 645 15.4 134.9 79.6
1970 3,152 2,433 719 15.1 131.9 92.9
1971 3,233 2,506 727 15.2 135.3 88.1
1972 3,520 2,776 744 15.0 153.3 90.1
1973 3,422 2,785 637 14.7 154.5 72.0
1974 3,387 2,720 666 14.9 151.9 76.3
1975 3,436 2,715 721 15.2 158.7 75.4
1976 3,348 2,573 775 15.3 153.3 80.5
1977 2,862 2,239 624 15.1 135.2 65.0
1978 3,139 2,515 624 15.2 154.9 60.6
1979 2,941 2,270 671 15.3 141.9 67.3
1980 2,724 1,988 736 15.8 126.2 70.9
1981 2,617 1,953 665 15.4 125.5 69.1
1982 2,514 1,994 521 15.5 129.6 50.0
1983 2,602 2,031 571 15.9 134.6 52.9
1984 2,412 1,912 500 15.2 123.5 52.1
1985 2,534 1,959 575 15.3 128.2 61.0
1986 2,364 1,827 537 15.5 119.5 55.9
1987 2,417 1,797 620 15.5 116.1 65.6
1988 2,484 1,787 697 15.6 116.8 71.3
1989 2,532 1,831 701 16.0 123.0 70.1
1990 2,420 1,777 644 15.6 116.5 64.1
1991 2,482 1,831 652 15.5 116.3 64.9
1992 2,625 1,892 733 15.9 117.8 67.9
1993 2,820 2,152 668 15.2 131.6 66.4
1994 2,866 2,144 722 15.3 125.2 70.4
1995 3,111 2,392 718 15.3 139.2 71.7
1996 3,249 2,486 763 15.3 141.7 79.9
1997 3,317 2,454 863 15.6 136.7 87.6
1998 3,257 2,521 736 15.5 141.8 75.9
1999 3,197 2,408 788 15.8 138.6 82.7
2000 2,966 2,247 719 15.8 129.6 74.1
20012   2,677 2,028 650 16.1 115.2 65.3
20022 -- -- 658 -- 100.1 59.6
*Low precision; no estimate reported.
-- Not available.
NOTE: Comparisons between years, particularly between recent estimates and those from 10 or more years prior, should be made with caution due to potential reporting and other biases.
1 The numerator of each rate is the number of persons in the age group who first used the drug in the year, while the denominator is the person-time exposure of persons in the age group measured in thousands of years.
2 Estimated using 2003 data only.
Source: SAMHSA, Office of Applied Studies, National Survey on Drug Use and Health, 2002 and 2003.

40618

Table  4.18A Numbers (in Thousands) of Persons Who Began Daily Cigarette Use in the United States, Their Mean Age at First Use, and Rates of First Use (Per 1,000 Person-Years of Exposure): 1965-2002, Based on 2002 and 2003 NSDUHs
YEAR NUMBER OF INITIATES (1,000s) MEAN
AGE		 AGE-SPECIFIC RATES1
All Ages Under 18 18 or Older 12–17 18–25
1965 1,518 693 825 18.2 34.1 62.4
1966 1,613 843 770 17.8 41.7 57.4
1967 1,691 871 820 17.3 41.9 60.2
1968 1,664 684 979 18.2 30.5 64.5
1969 1,929 879 1,051 18.2 40.0 67.7
1970 1,771 882 890 18.1 40.4 50.5
1971 1,851 938 913 17.7 42.5 51.6
1972 2,021 1,052 970 17.4 47.4 56.1
1973 2,137 1,117 1,020 17.6 48.5 52.8
1974 2,003 1,130 874 17.5 49.7 46.4
1975 2,218 1,317 901 17.3 58.7 46.1
1976 1,971 1,107 864 17.7 50.7 40.7
1977 1,927 1,074 853 17.7 49.6 40.2
1978 1,930 1,024 906 18.2 48.3 41.4
1979 1,776 939 837 17.9 45.5 37.6
1980 1,707 872 835 18.3 41.7 34.6
1981 1,611 863 748 18.0 43.0 32.1
1982 1,699 864 835 18.2 42.8 36.0
1983 1,496 737 760 18.4 36.8 32.3
1984 1,425 729 696 18.0 37.7 30.8
1985 1,421 778 642 17.6 40.1 29.7
1986 1,364 783 581 18.0 41.5 24.2
1987 1,421 739 682 18.2 38.6 28.8
1988 1,302 618 684 18.8 33.9 28.8
1989 1,317 634 683 18.4 34.6 30.6
1990 1,441 704 737 18.7 39.1 31.6
1991 1,525 676 849 19.1 36.8 34.9
1992 1,485 735 750 18.7 39.1 31.1
1993 1,394 787 608 17.8 40.9 27.1
1994 1,627 845 782 18.2 42.1 34.0
1995 1,606 875 731 17.9 42.4 33.6
1996 1,940 1,038 902 18.8 49.2 38.6
1997 2,020 1,085 935 18.5 50.6 42.8
1998 1,866 1,024 842 18.0 46.6 40.7
1999 1,869 1,030 839 18.4 46.6 38.7
2000 1,911 1,030 881 18.4 45.5 38.6
2001 1,617 879 738 19.0 38.9 30.8
20022 1,360 734 626 19.4 31.8 24.6
*Low precision; no estimate reported.
-- Not available.
NOTE: Comparisons between years, particularly between recent estimates and those from 10 or more years prior, should be made with caution due to potential reporting and other biases.
1 The numerator of each rate is the number of persons in the age group who first used the drug in the year, while the denominator is the person-time exposure of persons in the age group measured in thousands of years.
2 Estimated using 2003 data only.
Source: SAMHSA, Office of Applied Studies, National Survey on Drug Use and Health, 2002 and 2003.

40618

Table  4.19A Numbers (in Thousands) of Persons Who First Used Smokeless Tobacco in the United States, Their Mean Age at First Use, and Rates of First Use (Per 1,000 Person-Years of Exposure): 1965-2002, Based on 2002 and 2003 NSDUHs
YEAR NUMBER OF INITIATES (1,000s) MEAN
AGE		 AGE-SPECIFIC RATES1
All Ages Under 18 18 or Older 12–17 18–25
1965 595 384 210 17.5 16.7 8.0
1966 410 202 208 18.2 7.0 8.4
1967 630 334 296 17.8 12.0 11.2
1968 536 310 226 17.0 11.6 9.4
1969 598 369 229 17.1 13.3 8.1
1970 655 371 285 16.6 12.9 11.4
1971 668 366 303 17.7 12.0 8.9
1972 756 464 292 17.1 15.8 9.0
1973 866 514 351 17.2 19.5 12.0
1974 860 553 307 16.7 19.3 10.5
1975 940 594 346 17.1 19.2 10.3
1976 963 627 336 17.0 23.1 9.0
1977 1,195 718 477 17.5 27.4 13.7
1978 1,309 843 466 16.5 31.8 13.6
1979 1,410 933 477 17.1 37.7 11.9
1980 1,281 811 470 17.6 34.4 13.3
1981 1,391 864 526 17.2 37.8 14.6
1982 1,426 884 542 17.4 37.5 15.2
1983 1,282 897 385 16.9 41.4 11.2
1984 1,475 985 490 17.1 48.5 14.4
1985 1,149 836 313 16.1 41.9 9.8
1986 1,213 852 361 16.5 44.1 12.6
1987 974 630 344 17.6 32.9 11.0
1988 1,038 673 365 17.8 34.6 12.0
1989 930 580 350 17.1 30.3 13.6
1990 966 622 344 17.6 32.6 11.3
1991 964 580 385 18.6 29.9 12.0
1992 1,081 689 393 18.0 34.3 14.0
1993 976 655 321 16.6 31.7 13.2
1994 1,029 655 373 18.6 30.5 12.0
1995 1,014 666 348 17.8 29.9 12.0
1996 1,022 688 334 17.3 29.7 13.1
1997 1,007 662 345 18.2 28.4 13.0
1998 978 614 364 17.6 25.7 13.0
1999 996 652 344 17.3 26.7 13.2
2000 1,046 622 424 18.4 26.0 14.3
2001 1,008 574 434 18.6 24.3 14.9
20022 1,006 595 412 18.7 24.9 12.2
*Low precision; no estimate reported.
-- Not available.
NOTE: Comparisons between years, particularly between recent estimates and those from 10 or more years prior, should be made with caution due to potential reporting and other biases.
1 The numerator of each rate is the number of persons in the age group who first used the drug in the year, while the denominator is the person-time exposure of persons in the age group measured in thousands of years.
2 Estimated using 2003 data only.
Source: SAMHSA, Office of Applied Studies, National Survey on Drug Use and Health, 2002 and 2003.

40618

Table  4.20A Numbers (in Thousands) of Persons Who First Used Cigars in the United States, Their Mean Age at First Use, and Rates of First Use (Per 1,000 Person-Years of Exposure): 1965-2002, Based on 2002 and 2003 NSDUHs
YEAR NUMBER OF INITIATES (1,000s) MEAN
AGE		 AGE-SPECIFIC RATES1
All Ages Under 18 18 or Older 12–17 18–25
1965 1,007 352 655 19.8 14.8 33.9
1966 1,295 597 698 18.3 27.0 40.6
1967 1,232 497 735 19.0 22.3 36.2
1968 1,270 470 801 19.2 20.9 38.9
1969 1,519 615 904 20.2 25.1 36.7
1970 1,282 444 838 19.9 18.0 36.0
1971 1,292 499 792 19.8 20.7 32.6
1972 1,540 651 889 18.9 27.0 37.2
1973 1,560 599 961 18.8 24.4 42.6
1974 1,387 506 881 20.2 19.9 31.8
1975 1,564 605 959 19.4 24.0 36.4
1976 1,453 520 933 20.6 21.9 31.4
1977 1,237 456 781 19.8 18.8 27.6
1978 1,290 426 864 20.1 18.3 30.5
1979 1,312 429 883 20.5 18.2 29.3
1980 1,387 390 997 21.0 16.6 32.7
1981 1,195 331 864 21.0 14.7 26.4
1982 1,476 384 1,092 22.1 17.8 32.7
1983 1,238 430 808 20.5 19.8 23.4
1984 1,240 322 918 20.8 15.3 30.6
1985 1,231 395 836 20.5 19.3 27.6
1986 1,169 391 777 20.6 19.7 23.9
1987 1,369 291 1,079 23.0 14.4 32.7
1988 1,566 375 1,191 22.0 18.9 36.4
1989 1,619 351 1,267 23.5 17.2 35.3
1990 1,480 346 1,134 22.4 18.0 35.4
1991 1,646 443 1,203 22.2 21.9 35.5
1992 1,893 465 1,427 23.0 22.6 41.0
1993 2,119 559 1,560 23.7 26.9 42.2
1994 2,446 765 1,681 22.3 36.4 50.2
1995 2,684 923 1,761 21.6 42.8 57.8
1996 3,197 1,030 2,167 21.9 46.6 73.3
1997 3,557 1,192 2,364 22.2 54.0 78.4
1998 3,686 1,402 2,284 22.0 62.5 76.9
1999 3,524 1,371 2,152 21.5 61.9 77.6
2000 3,527 1,494 2,033 21.9 67.8 67.9
2001 3,291 1,509 1,782 21.7 69.5 63.1
20022 3,003 1,381 1,622 20.9 62.4 56.0
*Low precision; no estimate reported.
-- Not available.
NOTE: Comparisons between years, particularly between recent estimates and those from 10 or more years prior, should be made with caution due to potential reporting and other biases.
1 The numerator of each rate is the number of persons in the age group who first used the drug in the year, while the denominator is the person-time exposure of persons in the age group measured in thousands of years.
2 Estimated using 2003 data only.
Source: SAMHSA, Office of Applied Studies, National Survey on Drug Use and Health, 2002 and 2003.

40618

Table  4.21A Numbers (in Thousands) of Males Who First Used Marijuana in the United States, Their Mean Age at First Use, and Rates of First Use (Per 1,000 Person-Years of Exposure): 1965-2002, Based on 2002 and 2003 NSDUHs
YEAR NUMBER OF INITIATES (1,000s) MEAN
AGE		 AGE-SPECIFIC RATES1
All Ages Under 18 18 or Older 12–17 18–25
1965 536 205 331 18.7 20.0 34.4
1966 529 215 313 18.8 19.4 31.6
1967 863 276 587 19.0 25.1 55.6
1968 1,201 460 741 18.7 42.3 71.3
1969 1,726 623 1,103 19.1 59.1 109.1
1970 1,819 887 932 18.2 85.0 99.8
1971 1,717 797 920 18.3 74.5 98.6
1972 1,734 938 796 18.1 88.9 79.5
1973 1,978 1,017 961 18.6 99.2 107.9
1974 1,787 1,124 664 18.1 111.6 67.3
1975 1,664 988 676 18.1 100.1 72.2
1976 1,521 919 602 18.2 98.8 72.2
1977 1,586 1,018 568 17.5 109.4 75.4
1978 1,474 923 551 17.6 102.7 71.7
1979 1,587 946 641 19.2 104.3 67.4
1980 1,204 755 448 17.9 84.6 57.9
1981 1,235 725 510 18.1 82.9 65.3
1982 1,291 783 508 18.7 93.1 61.0
1983 1,196 816 380 17.3 93.2 49.8
1984 1,107 717 390 17.6 85.7 50.9
1985 1,119 783 336 17.5 93.8 45.6
1986 1,055 729 325 16.9 90.1 44.8
1987 938 607 331 17.5 74.7 47.7
1988 835 562 274 17.8 69.0 37.1
1989 889 580 309 17.5 71.1 41.7
1990 760 418 341 18.4 48.3 43.9
1991 904 621 283 16.4 71.9 40.3
1992 1,130 658 472 17.3 75.2 67.5
1993 1,155 731 424 17.3 80.1 54.2
1994 1,279 850 430 17.0 92.2 58.3
1995 1,390 912 479 16.7 96.4 66.3
1996 1,260 860 400 16.6 90.3 55.4
1997 1,341 920 421 16.6 95.3 57.4
1998 1,353 931 422 16.6 94.9 58.1
1999 1,392 909 484 17.3 91.5 63.7
2000 1,499 1,019 480 17.0 102.3 63.9
2001 1,391 927 464 17.5 92.5 58.5
20022 1,217 868 349 16.3 84.4 50.3
*Low precision; no estimate reported.
-- Not available.
NOTE: Comparisons between years, particularly between recent estimates and those from 10 or more years prior, should be made with caution due to potential reporting and other biases.
1 The numerator of each rate is the number of males in the age group who first used the drug in the year, while the denominator is the person-time exposure of males in the age group measured in thousands of years.
2 Estimated using 2003 data only.
Source: SAMHSA, Office of Applied Studies, National Survey on Drug Use and Health, 2002 and 2003.

40618

Table  4.22A Numbers (in Thousands) of Males Who First Used Cocaine in the United States, Their Mean Age at First Use, and Rates of First Use (Per 1,000 Person-Years of Exposure): 1965-2002, Based on 2002 and 2003 NSDUHs
YEAR NUMBER OF INITIATES (1,000s) MEAN
AGE		 AGE-SPECIFIC RATES1
All Ages Under 18 18 or Older 12–17 18–25
1965 62 * 49 * * *
1966 * * * * * *
1967 * * * * * *
1968 157 * 111 20.1 * 9.8
1969 157 34 123 22.1 2.7 8.0
1970 177 52 125 18.8 4.5 10.0
1971 376 76 300 20.7 6.6 20.0
1972 308 71 238 19.4 5.6 17.4
1973 405 108 296 19.9 9.3 21.4
1974 531 113 418 21.3 9.7 23.0
1975 523 102 421 21.2 8.8 25.7
1976 582 155 427 21.2 13.6 25.3
1977 710 148 562 21.6 13.1 32.5
1978 772 146 625 21.4 13.4 37.0
1979 894 178 716 21.2 16.7 46.2
1980 907 172 734 22.4 16.5 42.9
1981 880 153 727 21.6 14.9 46.6
1982 849 150 700 22.6 14.7 38.8
1983 796 123 673 22.0 12.4 43.7
1984 754 190 564 21.1 19.4 36.9
1985 709 142 566 22.3 14.6 34.5
1986 777 133 643 23.6 13.9 37.0
1987 671 124 547 23.0 13.0 31.8
1988 684 102 582 23.4 10.9 36.9
1989 536 81 455 23.6 8.6 27.2
1990 560 102 458 24.0 11.2 24.7
1991 416 58 358 23.3 6.0 21.4
1992 458 91 366 24.8 9.4 18.3
1993 385 79 306 22.7 8.0 18.6
1994 395 89 306 22.7 8.5 17.7
1995 454 115 339 21.8 10.6 21.4
1996 541 135 406 22.7 12.2 26.5
1997 551 125 426 21.4 11.1 29.4
1998 555 166 389 20.5 14.1 27.1
1999 555 142 413 20.7 11.9 28.6
2000 636 182 454 21.4 14.8 28.4
2001 668 185 484 20.7 15.0 30.0
20022 583 164 419 20.3 13.1 28.1
*Low precision; no estimate reported.
-- Not available.
NOTE: Comparisons between years, particularly between recent estimates and those from 10 or more years prior, should be made with caution due to potential reporting and other biases.
1 The numerator of each rate is the number of males in the age group who first used the drug in the year, while the denominator is the person-time exposure of males in the age group measured in thousands of years.
2 Estimated using 2003 data only.
Source: SAMHSA, Office of Applied Studies, National Survey on Drug Use and Health, 2002 and 2003.

40618

Table  4.23A Numbers (in Thousands) of Males Who First Used Crack in the United States, Their Mean Age at First Use, and Rates of First Use (Per 1,000 Person-Years of Exposure): 1965-2002, Based on 2002 and 2003 NSDUHs
YEAR NUMBER OF INITIATES (1,000s) MEAN
AGE		 AGE-SPECIFIC RATES1
All Ages Under 18 18 or Older 12–17 18–25
1965 * * * * * *
1966 * * * * * *
1967 * * * * * *
1968 * * * * * *
1969 * * * * * *
1970 * * * * * *
1971 * * * * * *
1972 * * * * * *
1973 * * * * * *
1974 * * * * * *
1975 * * * * * *
1976 * * * * * *
1977 * * * * * *
1978 65 * 52 20.3 * 3.3
1979 52 * 43 23.6 * 1.9
1980 113 * 83 23.1 * 2.8
1981 98 * 83 23.2 * 3.4
1982 132 * 124 26.1 * 4.1
1983 92 * 78 25.1 * 2.5
1984 145 23 122 23.3 2.3 4.5
1985 282 34 249 25.3 3.4 10.1
1986 164 21 142 26.2 2.2 5.2
1987 199 * 180 24.3 * 7.7
1988 237 21 217 25.9 2.2 7.2
1989 235 * 229 25.1 * 9.3
1990 276 19 257 27.7 2.1 7.9
1991 271 28 242 26.9 3.0 7.7
1992 285 19 267 28.9 1.9 6.4
1993 262 24 238 29.3 2.3 7.4
1994 262 28 234 28.3 2.7 5.2
1995 288 26 261 28.2 2.5 8.2
1996 233 34 198 26.8 2.9 6.5
1997 257 31 226 26.9 2.7 7.9
1998 272 54 218 24.5 4.5 9.3
1999 238 40 198 25.4 3.2 8.9
2000 259 53 206 26.9 4.3 6.8
2001 230 52 178 23.4 4.1 7.2
20022 209 35 174 23.6 2.7 7.7
*Low precision; no estimate reported.
-- Not available.
NOTE: Comparisons between years, particularly between recent estimates and those from 10 or more years prior, should be made with caution due to potential reporting and other biases.
1 The numerator of each rate is the number of males in the age group who first used the drug in the year, while the denominator is the person-time exposure of males in the age group measured in thousands of years.
2 Estimated using 2003 data only.
Source: SAMHSA, Office of Applied Studies, National Survey on Drug Use and Health, 2002 and 2003.

40618

Table  4.24A Numbers (in Thousands) of Males Who First Used Heroin in the United States, Their Mean Age at First Use, and Rates of First Use (Per 1,000 Person-Years of Exposure): 1965-2002, Based on 2002 and 2003 NSDUHs
YEAR NUMBER OF INITIATES (1,000s) MEAN
AGE		 AGE-SPECIFIC RATES1
All Ages Under 18 18 or Older 12–17 18–25
1965 * * * * * *
1966 * * * * * *
1967 * * * * * *
1968 74 * * * * *
1969 42 * 36 19.9 * 2.8
1970 * * * * * *
1971 92 13 79 19.7 1.1 6.1
1972 79 * 72 20.8 * 4.8
1973 165 * 150 21.3 * 9.2
1974 127 * 115 20.6 * 7.4
1975 53 * 49 23.1 * 2.7
1976 58 * 58 21.6 * 3.2
1977 80 * 77 22.2 * 4.8
1978 61 * 57 20.5 * 3.7
1979 60 15 45 20.4 1.4 2.7
1980 54 * 37 20.6 * 2.3
1981 60 * 57 20.8 * 3.2
1982 43 * 39 22.3 * 2.1
1983 58 * 56 23.5 * 2.5
1984 60 * 48 22.7 * 1.9
1985 26 * 24 24.2 * 0.7
1986 69 * 53 22.9 * 2.6
1987 57 * 53 25.4 * 2.0
1988 53 * 52 24.4 * 2.4
1989 62 * 57 25.5 * 2.2
1990 36 * 31 27.3 * *
1991 52 * 51 24.0 * 2.0
1992 72 * 66 28.5 * 1.9
1993 37 5 32 23.3 0.5 1.2
1994 47 7 39 25.3 0.7 *
1995 72 24 48 24.1 2.3 *
1996 97 12 85 24.3 1.1 3.8
1997 86 19 67 22.8 1.7 3.3
1998 107 16 91 24.5 1.3 3.4
1999 87 17 70 24.1 1.4 3.3
2000 80 17 63 22.1 1.3 3.4
2001 89 15 74 24.5 1.2 3.6
20022 79 13 66 20.9 1.0 3.4
*Low precision; no estimate reported.
-- Not available.
NOTE: Comparisons between years, particularly between recent estimates and those from 10 or more years prior, should be made with caution due to potential reporting and other biases.
1 The numerator of each rate is the number of males in the age group who first used the drug in the year, while the denominator is the person-time exposure of males in the age group measured in thousands of years.
2 Estimated using 2003 data only.
Source: SAMHSA, Office of Applied Studies, National Survey on Drug Use and Health, 2002 and 2003.

40618

Table  4.25A Numbers (in Thousands) of Males Who First Used Hallucinogens in the United States, Their Mean Age at First Use, and Rates of First Use (Per 1,000 Person-Years of Exposure): 1965-2002, Based on 2002 and 2003 NSDUHs
YEAR NUMBER OF INITIATES (1,000s) MEAN
AGE		 AGE-SPECIFIC RATES1
All Ages Under 18 18 or Older 12–17 18–25
1965 39 * 39 * * 4.0
1966 77 37 39 17.0 3.6 3.7
1967 226 93 133 18.7 8.3 10.8
1968 222 104 118 19.2 8.5 7.8
1969 508 181 328 18.9 15.9 26.0
1970 685 255 430 18.9 22.6 34.5
1971 562 259 304 18.0 22.9 24.7
1972 637 359 278 17.2 31.3 22.5
1973 536 240 296 18.2 21.5 24.3
1974 600 273 326 18.6 24.3 24.7
1975 600 289 311 17.8 25.3 25.2
1976 584 278 306 18.4 25.0 24.1
1977 560 247 313 18.6 22.6 25.4
1978 517 239 278 17.9 21.9 22.8
1979 636 293 343 18.6 27.8 23.9
1980 618 268 350 18.8 26.2 25.9
1981 519 201 318 19.2 20.1 22.9
1982 584 193 392 19.3 19.3 29.4
1983 469 205 264 18.6 20.5 20.0
1984 454 216 237 18.8 21.7 17.7
1985 385 135 250 18.8 13.5 19.1
1986 392 176 216 19.1 18.5 15.3
1987 443 196 247 19.6 20.6 18.7
1988 569 210 359 19.5 22.7 27.3
1989 460 167 292 19.2 18.2 22.5
1990 432 167 265 19.3 18.1 19.2
1991 455 195 260 19.1 21.2 20.0
1992 388 185 203 18.4 19.3 16.2
1993 491 232 259 18.9 23.6 19.3
1994 551 280 271 17.9 28.2 23.3
1995 563 265 298 18.3 25.1 25.1
1996 632 282 350 19.8 26.2 28.2
1997 631 266 365 19.3 23.7 29.7
1998 683 319 364 18.7 27.5 29.3
1999 833 351 483 18.9 30.0 40.2
2000 830 408 422 18.4 34.4 34.3
2001 819 359 460 19.2 29.5 34.7
20022 555 267 289 18.0 21.2 24.1
*Low precision; no estimate reported.
-- Not available.
NOTE: Comparisons between years, particularly between recent estimates and those from 10 or more years prior, should be made with caution due to potential reporting and other biases.
1 The numerator of each rate is the number of males in the age group who first used the drug in the year, while the denominator is the person-time exposure of males in the age group measured in thousands of years.
2 Estimated using 2003 data only.
Source: SAMHSA, Office of Applied Studies, National Survey on Drug Use and Health, 2002 and 2003.

40618

Table  4.26A Numbers (in Thousands) of Males Who First Used LSD in the United States, Their Mean Age at First Use, and Rates of First Use (Per 1,000 Person-Years of Exposure): 1965-2002, Based on 2002 and 2003 NSDUHs
YEAR NUMBER OF INITIATES (1,000s) MEAN
AGE		 AGE-SPECIFIC RATES1
All Ages Under 18 18 or Older 12–17 18–25
1965 33 * 28 * * 2.9
1966 39 * 20 16.9 * *
1967 115 46 70 19.2 * 5.3
1968 226 129 98 18.7 11.9 6.1
1969 387 128 260 19.6 11.0 19.8
1970 567 240 327 18.4 21.2 26.5
1971 467 205 262 18.4 17.9 18.9
1972 566 273 293 17.8 23.9 23.5
1973 548 265 282 18.1 23.3 22.2
1974 473 214 258 18.6 18.8 19.3
1975 405 176 229 18.3 15.5 17.5
1976 391 166 225 18.0 14.8 18.1
1977 456 204 252 18.4 18.3 19.7
1978 359 157 202 17.9 14.5 16.0
1979 531 233 297 18.8 21.6 19.5
1980 564 266 298 18.5 25.7 21.5
1981 397 152 245 19.0 15.1 17.4
1982 430 169 261 18.5 16.8 18.7
1983 357 159 198 18.5 16.0 14.8
1984 375 144 231 20.1 14.7 14.7
1985 325 139 186 19.1 14.2 12.9
1986 279 115 164 19.1 11.8 11.5
1987 302 165 137 18.5 17.3 9.4
1988 471 204 267 18.5 21.8 20.8
1989 389 135 254 19.8 14.8 17.5
1990 355 161 195 19.3 17.6 14.3
1991 380 171 210 18.9 18.6 15.9
1992 370 165 205 18.7 17.5 15.5
1993 326 151 175 18.7 15.7 13.1
1994 444 243 201 17.7 24.4 16.3
1995 437 217 219 17.7 20.9 19.1
1996 483 227 256 18.6 21.0 21.1
1997 462 210 252 18.5 18.5 20.2
1998 442 249 193 17.8 21.6 16.6
1999 490 248 242 18.2 20.8 18.5
2000 506 253 254 18.0 21.1 20.6
2001 353 184 170 17.7 14.9 13.4
20022 160 99 60 17.2 7.9 4.9
*Low precision; no estimate reported.
-- Not available.
NOTE: Comparisons between years, particularly between recent estimates and those from 10 or more years prior, should be made with caution due to potential reporting and other biases.
1 The numerator of each rate is the number of males in the age group who first used the drug in the year, while the denominator is the person-time exposure of males in the age group measured in thousands of years.
2 Estimated using 2003 data only.
Source: SAMHSA, Office of Applied Studies, National Survey on Drug Use and Health, 2002 and 2003.

40618

Table  4.27A Numbers (in Thousands) of Males Who First Used PCP in the United States, Their Mean Age at First Use, and Rates of First Use (Per 1,000 Person-Years of Exposure): 1965-2002, Based on 2002 and 2003 NSDUHs
YEAR NUMBER OF INITIATES (1,000s) MEAN
AGE		 AGE-SPECIFIC RATES1
All Ages Under 18 18 or Older 12–17 18–25
1965 * * * * * *
1966 * * * * * *
1967 * * * * * *
1968 * * * * * *
1969 25 20 * * 1.8 *
1970 133 46 86 18.8 4.1 6.1
1971 172 93 79 17.9 8.0 6.2
1972 224 106 117 17.5 9.0 8.8
1973 173 61 111 19.0 5.3 8.3
1974 323 149 174 18.1 12.4 11.6
1975 266 144 121 18.3 12.5 8.1
1976 306 125 181 19.2 11.0 11.7
1977 300 106 194 19.6 9.4 12.6
1978 243 60 183 21.0 5.4 10.1
1979 215 76 139 19.0 7.0 9.3
1980 231 81 150 20.7 7.6 8.1
1981 149 48 101 19.8 4.6 6.2
1982 171 36 135 20.9 3.5 8.1
1983 113 41 72 18.9 4.0 4.7
1984 87 20 66 19.5 2.0 4.3
1985 93 38 55 19.0 3.8 3.2
1986 80 * 74 21.8 * 4.3
1987 76 * 42 19.8 * 2.3
1988 79 23 56 21.0 2.4 2.9
1989 89 21 67 22.2 2.2 3.1
1990 43 24 19 21.8 2.6 *
1991 67 27 40 21.5 2.9 1.9
1992 54 10 45 19.3 1.0 3.2
1993 45 28 17 18.5 2.9 *
1994 74 48 26 17.0 4.7 1.9
1995 103 43 60 19.1 4.0 4.2
1996 83 47 37 17.2 4.1 2.8
1997 72 31 41 18.3 2.6 3.1
1998 81 52 29 17.3 4.4 1.9
1999 97 51 46 18.0 4.1 3.4
2000 103 66 37 16.9 5.4 2.6
2001 111 58 53 18.4 4.6 3.0
20022 88 49 39 17.3 3.8 2.6
*Low precision; no estimate reported.
-- Not available.
NOTE: Comparisons between years, particularly between recent estimates and those from 10 or more years prior, should be made with caution due to potential reporting and other biases.
1 The numerator of each rate is the number of males in the age group who first used the drug in the year, while the denominator is the person-time exposure of males in the age group measured in thousands of years.
2 Estimated using 2003 data only.
Source: SAMHSA, Office of Applied Studies, National Survey on Drug Use and Health, 2002 and 2003.

40618

Table  4.28A Numbers (in Thousands) of Males Who First Used Ecstasy in the United States, Their Mean Age at First Use, and Rates of First Use (Per 1,000 Person-Years of Exposure): 1965-2002, Based on 2002 and 2003 NSDUHs
YEAR NUMBER OF INITIATES (1,000s) MEAN
AGE		 AGE-SPECIFIC RATES1
All Ages Under 18 18 or Older 12–17 18–25
1965 * * * * * *
1966 * * * * * *
1967 * * * * * *
1968 * * * * * *
1969 * * * * * *
1970 * * * * * *
1971 * * * * * *
1972 * * * * * *
1973 * * * * * *
1974 * * * * * *
1975 * * * * * *
1976 35 * 26 * * *
1977 * * * * * *
1978 * * * * * *
1979 29 * 29 * * *
1980 23 * * * * *
1981 * * * * * *
1982 20 * * * * *
1983 48 * * * * *
1984 62 * 62 24.6 * 2.5
1985 71 * 64 23.1 * 2.6
1986 74 * 56 22.4 * 2.9
1987 98 * 89 22.1 * 5.7
1988 135 * 113 25.0 * 4.8
1989 141 27 114 23.3 2.9 5.2
1990 131 * 128 25.7 * 4.5
1991 72 * 64 23.4 * 2.9
1992 99 * 87 22.6 * 4.7
1993 123 17 106 23.1 1.6 5.7
1994 154 32 122 23.3 3.1 6.7
1995 206 31 175 21.1 2.8 11.3
1996 234 42 192 26.4 3.6 9.4
1997 353 60 292 23.3 5.3 15.2
1998 486 88 399 21.3 7.3 23.9
1999 780 156 624 21.5 12.9 38.8
2000 949 238 711 21.7 19.5 42.1
2001 968 238 731 22.9 19.3 38.4
20022 536 151 386 21.5 11.9 22.6
*Low precision; no estimate reported.
-- Not available.
NOTE: Comparisons between years, particularly between recent estimates and those from 10 or more years prior, should be made with caution due to potential reporting and other biases.
1 The numerator of each rate is the number of males in the age group who first used the drug in the year, while the denominator is the person-time exposure of males in the age group measured in thousands of years.
2 Estimated using 2003 data only.
Source: SAMHSA, Office of Applied Studies, National Survey on Drug Use and Health, 2002 and 2003.

40618

Table  4.29A Numbers (in Thousands) of Males Who First Used Inhalants in the United States, Their Mean Age at First Use, and Rates of First Use (Per 1,000 Person-Years of Exposure): 1965-2002, Based on 2002 and 2003 NSDUHs
YEAR NUMBER OF INITIATES (1,000s) MEAN
AGE		 AGE-SPECIFIC RATES1
All Ages Under 18 18 or Older 12–17 18–25
1965 63 63 * 13.3 6.0 *
1966 170 133 37 15.2 10.9 *
1967 128 75 52 17.3 5.2 3.6
1968 200 130 69 17.8 11.0 *
1969 211 137 73 16.7 12.5 5.8
1970 201 135 66 16.0 9.3 5.0
1971 236 176 60 15.4 14.2 4.8
1972 229 157 72 16.8 13.4 4.4
1973 270 158 112 17.4 13.3 7.1
1974 361 186 176 18.3 13.8 10.4
1975 335 220 115 17.2 17.7 7.7
1976 429 211 218 18.3 19.1 13.6
1977 523 214 310 18.9 17.9 17.5
1978 441 253 187 17.8 22.5 12.4
1979 621 315 306 18.4 30.0 17.9
1980 531 280 250 19.3 27.1 13.9
1981 400 198 203 18.2 18.7 13.4
1982 333 188 145 17.7 17.9 9.0
1983 383 211 172 18.8 20.9 9.1
1984 361 220 142 17.7 21.8 8.9
1985 310 148 163 19.3 14.8 9.5
1986 313 177 137 18.5 18.3 8.6
1987 384 235 149 17.5 22.7 9.8
1988 433 247 186 17.7 25.2 13.5
1989 335 164 171 17.6 16.5 13.4
1990 320 158 161 18.5 15.7 11.5
1991 293 168 125 18.4 16.5 6.4
1992 396 246 150 17.2 24.3 10.8
1993 365 216 149 18.1 21.4 10.0
1994 362 244 119 16.8 22.9 9.4
1995 415 238 177 17.2 20.3 13.9
1996 410 235 174 17.4 18.2 12.2
1997 464 277 188 16.8 20.4 15.3
1998 525 296 229 17.9 21.4 16.9
1999 554 361 193 16.0 24.4 15.6
2000 656 440 215 16.8 30.9 14.1
2001 632 417 215 16.5 31.6 16.2
20022 548 409 139 15.7 31.2 10.5
*Low precision; no estimate reported.
-- Not available.
NOTE: Comparisons between years, particularly between recent estimates and those from 10 or more years prior, should be made with caution due to potential reporting and other biases.
1 The numerator of each rate is the number of males in the age group who first used the drug in the year, while the denominator is the person-time exposure of males in the age group measured in thousands of years.
2 Estimated using 2003 data only.
Source: SAMHSA, Office of Applied Studies, National Survey on Drug Use and Health, 2002 and 2003.

40618

Table  4.30A Numbers (in Thousands) of Males Who First Used Pain Relievers Nonmedically in the United States, Their Mean Age at First Use, and Rates of First Use (Per 1,000 Person-Years of Exposure): 1965-2002, Based on 2002 and 2003 NSDUHs
YEAR NUMBER OF INITIATES (1,000s) MEAN
AGE		 AGE-SPECIFIC RATES1
All Ages Under 18 18 or Older 12–17 18–25
1965 38 38 * * * *
1966 * * * * * *
1967 54 * 39 23.0 * 3.0
1968 139 63 76 18.9 * 6.8
1969 229 124 105 19.2 10.7 7.3
1970 220 66 154 22.2 5.2 8.4
1971 276 161 115 17.2 13.4 8.7
1972 208 81 127 20.0 6.7 7.6
1973 237 111 126 18.7 9.1 8.3
1974 285 112 172 20.4 9.0 8.1
1975 282 113 169 19.0 9.2 10.7
1976 300 92 208 20.5 8.1 11.9
1977 371 100 271 21.0 8.6 15.3
1978 283 95 187 20.0 8.3 11.1
1979 297 118 180 19.6 10.9 10.3
1980 328 129 199 21.3 11.4 7.3
1981 261 84 177 21.2 7.8 8.5
1982 262 102 161 20.3 9.1 7.6
1983 337 77 260 22.2 7.3 14.0
1984 300 90 211 23.0 8.4 9.3
1985 297 69 228 21.1 6.1 12.3
1986 306 64 242 23.1 6.2 12.3
1987 373 75 298 24.3 6.4 12.1
1988 319 67 252 23.9 6.4 10.5
1989 366 100 266 22.8 10.0 14.1
1990 320 82 239 23.0 7.8 10.5
1991 320 97 223 22.6 9.1 10.7
1992 448 82 366 26.0 7.2 13.3
1993 370 112 258 21.6 10.1 14.9
1994 512 162 349 22.4 14.1 15.2
1995 479 166 313 21.4 13.1 17.8
1996 582 213 369 20.7 17.4 23.0
1997 716 268 448 20.5 21.6 26.1
1998 897 321 576 22.5 25.1 29.2
1999 1,027 423 604 20.8 32.9 35.2
2000 1,261 497 764 20.9 39.8 43.6
2001 1,249 564 685 20.4 46.0 40.0
20022 1,102 522 580 20.2 43.0 31.6
*Low precision; no estimate reported.
-- Not available.
NOTE: Comparisons between years, particularly between recent estimates and those from 10 or more years prior, should be made with caution due to potential reporting and other biases.
1 The numerator of each rate is the number of males in the age group who first used the drug in the year, while the denominator is the person-time exposure of males in the age group measured in thousands of years.
2 Estimated using 2003 data only.
Source: SAMHSA, Office of Applied Studies, National Survey on Drug Use and Health, 2002 and 2003.

40618

Table  4.31A Numbers (in Thousands) of Males Who First Used Tranquilizers Nonmedically in the United States, Their Mean Age at First Use, and Rates of First Use (Per 1,000 Person-Years of Exposure): 1965-2002, Based on 2002 and 2003 NSDUHs
YEAR NUMBER OF INITIATES (1,000s) MEAN
AGE		 AGE-SPECIFIC RATES1
All Ages Under 18 18 or Older 12–17 18–25
1965 * * * * * *
1966 * * * * * *
1967 49 * 49 * * *
1968 42 * * * * *
1969 142 92 51 17.8 7.9 3.7
1970 145 52 93 20.4 4.6 5.6
1971 151 82 69 17.6 7.1 4.5
1972 217 108 109 18.2 9.2 7.1
1973 270 70 199 21.4 6.1 10.3
1974 278 143 135 17.9 12.3 9.1
1975 328 103 225 20.9 8.9 11.2
1976 292 116 176 19.3 9.6 10.4
1977 283 105 178 21.0 9.2 9.4
1978 262 55 207 20.7 5.0 11.4
1979 260 127 132 19.7 11.5 7.5
1980 228 76 153 20.4 7.2 8.7
1981 216 77 139 20.8 7.5 7.8
1982 256 58 198 22.1 5.7 10.2
1983 212 32 180 21.2 2.3 10.1
1984 182 37 145 21.8 3.6 6.9
1985 213 53 161 24.0 5.2 6.3
1986 209 54 155 26.4 5.5 5.7
1987 200 28 172 24.0 2.8 7.7
1988 223 49 175 23.6 4.9 8.7
1989 221 41 180 23.9 4.2 8.9
1990 207 55 152 24.2 5.9 7.3
1991 194 38 156 22.7 3.8 7.1
1992 211 45 167 24.4 3.9 6.5
1993 270 63 207 24.5 6.0 8.5
1994 232 59 173 21.9 5.7 8.9
1995 220 84 136 21.2 7.6 7.5
1996 295 92 203 21.6 7.9 10.9
1997 386 108 278 23.3 9.0 13.3
1998 493 154 339 22.9 12.8 16.2
1999 444 158 286 22.1 13.0 14.6
2000 677 213 464 23.3 17.2 21.3
2001 562 198 364 21.5 15.7 19.5
20022 486 167 318 20.7 13.3 18.0
*Low precision; no estimate reported.
-- Not available.
NOTE: Comparisons between years, particularly between recent estimates and those from 10 or more years prior, should be made with caution due to potential reporting and other biases.
1 The numerator of each rate is the number of males in the age group who first used the drug in the year, while the denominator is the person-time exposure of males in the age group measured in thousands of years.
2 Estimated using 2003 data only.
Source: SAMHSA, Office of Applied Studies, National Survey on Drug Use and Health, 2002 and 2003.

40618

Table  4.32A Numbers (in Thousands) of Males Who First Used Stimulants Nonmedically in the United States, Their Mean Age at First Use, and Rates of First Use (Per 1,000 Person-Years of Exposure): 1965-2002, Based on 2002 and 2003 NSDUHs
YEAR NUMBER OF INITIATES (1,000s) MEAN
AGE		 AGE-SPECIFIC RATES1
All Ages Under 18 18 or Older 12–17 18–25
1965 110 * 69 19.5 * *
1966 119 * 99 19.2 * 10.2
1967 123 67 57 19.5 6.2 4.1
1968 189 63 126 19.1 5.8 11.4
1969 267 103 164 19.1 9.2 13.0
1970 328 150 178 18.8 13.3 14.5
1971 446 151 295 19.1 12.9 21.2
1972 425 163 261 18.8 13.9 19.1
1973 291 112 179 19.5 9.7 11.9
1974 295 117 178 18.6 10.1 13.3
1975 360 131 228 19.7 11.4 14.8
1976 373 156 217 19.7 13.7 13.9
1977 361 150 211 18.7 13.2 14.7
1978 328 134 193 19.1 12.3 12.9
1979 366 147 218 18.5 13.8 14.5
1980 395 144 251 19.5 13.8 16.7
1981 375 109 266 20.6 10.7 15.2
1982 348 162 185 19.2 15.4 11.0
1983 272 51 222 21.5 5.0 11.7
1984 247 84 163 20.4 8.5 9.2
1985 226 71 155 20.8 7.1 8.9
1986 170 77 94 18.6 7.8 6.0
1987 235 70 164 21.6 7.2 8.8
1988 176 71 105 19.5 7.5 6.4
1989 196 45 152 21.0 4.4 10.2
1990 185 80 105 20.4 8.5 5.9
1991 120 41 79 19.8 3.7 5.0
1992 163 68 95 21.6 6.8 5.1
1993 218 81 137 19.6 8.1 9.5
1994 214 94 120 19.3 8.8 7.2
1995 310 125 185 20.8 11.3 11.0
1996 316 121 196 20.3 10.4 11.1
1997 321 143 178 19.9 12.2 11.8
1998 395 165 230 20.4 13.6 12.1
1999 439 198 240 20.0 15.6 13.5
2000 448 189 259 20.5 14.6 13.7
2001 401 192 209 18.7 15.3 13.3
20022 329 174 155 18.2 13.5 9.3
*Low precision; no estimate reported.
-- Not available.
NOTE: Comparisons between years, particularly between recent estimates and those from 10 or more years prior, should be made with caution due to potential reporting and other biases.
1 The numerator of each rate is the number of males in the age group who first used the drug in the year, while the denominator is the person-time exposure of males in the age group measured in thousands of years.
2 Estimated using 2003 data only.
Source: SAMHSA, Office of Applied Studies, National Survey on Drug Use and Health, 2002 and 2003.

40618

Table  4.33A Numbers (in Thousands) of Males Who First Used Methamphetamines Nonmedically in the United States, Their Mean Age at First Use, and Rates of First Use (Per 1,000 Person-Years of Exposure): 1965-2002, Based on 2002 and 2003 NSDUHs
YEAR NUMBER OF INITIATES (1,000s) MEAN
AGE		 AGE-SPECIFIC RATES1
All Ages Under 18 18 or Older 12–17 18–25
1965 * * * * * *
1966 60 * 50 * * 5.1
1967 68 37 * 18.0 3.4 *
1968 69 42 27 18.0 3.8 2.4
1969 181 97 85 18.6 8.7 6.1
1970 175 66 109 19.2 5.8 8.3
1971 393 110 282 19.3 9.3 20.2
1972 211 74 137 18.3 6.3 10.7
1973 269 89 179 20.0 7.7 10.7
1974 238 94 143 19.1 8.1 10.2
1975 256 78 178 19.7 6.7 11.9
1976 244 116 128 19.4 10.0 8.1
1977 261 112 148 18.9 9.9 10.0
1978 167 56 111 19.8 5.1 7.0
1979 278 119 159 18.7 11.0 9.9
1980 245 105 139 18.7 9.9 8.3
1981 220 61 159 20.4 5.9 8.6
1982 244 80 164 19.7 7.8 10.2
1983 216 39 177 21.2 3.9 9.6
1984 208 64 144 20.1 6.4 8.2
1985 192 63 129 20.7 6.3 7.1
1986 178 69 108 19.4 7.1 6.7
1987 209 52 157 21.7 5.4 8.1
1988 154 44 110 21.4 4.6 6.2
1989 165 33 133 21.9 3.3 8.2
1990 112 26 86 22.3 2.8 4.5
1991 122 30 92 21.5 3.1 5.4
1992 100 32 68 20.0 3.1 4.5
1993 180 57 123 20.6 5.7 7.9
1994 154 48 105 20.0 4.7 6.7
1995 192 63 129 21.5 5.7 7.2
1996 190 66 123 21.3 5.7 6.6
1997 195 68 127 20.7 5.9 6.7
1998 228 86 142 22.7 7.3 5.3
1999 215 76 140 20.9 6.2 7.9
2000 192 74 118 20.6 6.0 5.7
2001 195 75 120 20.2 5.9 6.7
20022 165 66 99 20.1 5.1 4.9
*Low precision; no estimate reported.
-- Not available.
NOTE: Comparisons between years, particularly between recent estimates and those from 10 or more years prior, should be made with caution due to potential reporting and other biases.
1 The numerator of each rate is the number of males in the age group who first used the drug in the year, while the denominator is the person-time exposure of males in the age group measured in thousands of years.
2 Estimated using 2003 data only.
Source: SAMHSA, Office of Applied Studies, National Survey on Drug Use and Health, 2002 and 2003.

40618

Table  4.34A Numbers (in Thousands) of Males Who First Used Sedatives Nonmedically in the United States, Their Mean Age at First Use, and Rates of First Use (Per 1,000 Person-Years of Exposure): 1965-2002, Based on 2002 and 2003 NSDUHs
YEAR NUMBER OF INITIATES (1,000s) MEAN
AGE		 AGE-SPECIFIC RATES1
All Ages Under 18 18 or Older 12–17 18–25
1965 35 * * * * *
1966 36 * * * * *
1967 74 33 41 19.3 3.1 3.3
1968 105 39 66 19.2 3.6 5.0
1969 171 108 63 17.4 9.7 5.4
1970 173 91 82 19.1 8.1 5.0
1971 306 150 155 18.3 12.9 11.4
1972 297 113 185 18.0 9.7 14.3
1973 312 162 150 18.6 13.4 10.2
1974 364 151 214 18.6 12.9 14.8
1975 297 113 185 19.4 9.8 12.4
1976 307 169 139 18.3 14.8 9.0
1977 318 83 235 19.9 7.4 14.4
1978 219 117 101 18.1 10.7 6.0
1979 315 129 186 18.5 12.1 12.7
1980 225 89 136 19.0 8.6 8.3
1981 221 77 144 20.6 7.5 8.0
1982 168 62 105 19.1 6.0 6.3
1983 176 38 138 20.6 3.8 7.7
1984 99 24 75 21.0 2.3 4.5
1985 77 * 50 20.7 * 2.6
1986 48 * 38 24.2 * 1.9
1987 67 * 61 28.5 * 1.4
1988 39 * 33 23.1 * 1.4
1989 37 14 23 23.5 * *
1990 43 * 36 23.4 * 1.8
1991 42 13 29 22.8 1.4 1.3
1992 55 26 29 22.5 2.4 1.4
1993 55 20 35 21.8 2.0 1.9
1994 69 14 54 23.4 1.2 2.0
1995 50 17 33 20.5 1.5 1.9
1996 60 22 38 19.9 1.7 2.2
1997 87 37 51 21.8 3.0 2.0
1998 74 26 47 23.3 2.0 2.4
1999 90 31 60 24.6 2.3 2.2
2000 112 40 73 22.3 2.9 2.7
2001 93 33 60 23.4 2.2 2.2
20022 52 42 10 15.6 3.3 0.6
*Low precision; no estimate reported.
-- Not available.
NOTE: Comparisons between years, particularly between recent estimates and those from 10 or more years prior, should be made with caution due to potential reporting and other biases.
1 The numerator of each rate is the number of males in the age group who first used the drug in the year, while the denominator is the person-time exposure of males in the age group measured in thousands of years.
2 Estimated using 2003 data only.
Source: SAMHSA, Office of Applied Studies, National Survey on Drug Use and Health, 2002 and 2003.

40618

Table  4.35A Numbers (in Thousands) of Males Who First Used Alcohol in the United States, Their Mean Age at First Use, and Rates of First Use (Per 1,000 Person-Years of Exposure): 1965-2002, Based on 2002 and 2003 NSDUHs
YEAR NUMBER OF INITIATES (1,000s) MEAN
AGE		 AGE-SPECIFIC RATES1
All Ages Under 18 18 or Older 12–17 18–25
1965 1,803 1,204 599 16.5 143.7 293.4
1966 1,554 1,111 443 15.9 133.0 230.1
1967 1,838 1,186 652 16.4 139.4 323.7
1968 1,882 1,405 477 15.7 164.6 219.2
1969 2,041 1,334 708 16.3 156.0 334.5
1970 1,973 1,372 601 16.0 153.1 332.8
1971 1,998 1,408 590 16.1 155.5 323.3
1972 2,160 1,648 512 15.6 186.0 293.4
1973 2,030 1,466 565 15.8 172.9 339.0
1974 1,949 1,508 441 15.5 181.7 276.6
1975 2,001 1,459 542 15.8 175.6 322.7
1976 1,890 1,394 496 15.6 171.2 298.1
1977 1,887 1,463 424 15.4 184.2 267.6
1978 1,909 1,430 479 15.5 186.5 292.6
1979 1,850 1,489 361 15.3 207.1 222.7
1980 1,561 1,192 369 15.6 166.9 217.2
1981 1,647 1,293 353 15.4 181.0 203.2
1982 1,801 1,344 457 15.7 185.6 263.2
1983 1,529 1,146 383 15.7 159.1 234.0
1984 1,620 1,278 342 15.2 178.1 208.5
1985 1,630 1,195 435 15.8 173.5 266.0
1986 1,523 1,264 259 15.0 185.4 152.0
1987 1,547 1,116 430 16.0 168.4 252.4
1988 1,424 1,074 351 15.5 162.4 196.2
1989 1,446 1,020 426 16.1 155.4 228.7
1990 1,351 990 361 15.7 143.6 199.8
1991 1,460 1,003 457 16.0 140.3 257.2
1992 1,600 1,166 434 16.3 158.6 229.8
1993 1,540 1,096 444 15.8 144.3 240.1
1994 1,511 1,169 342 15.1 142.9 193.2
1995 1,555 1,156 399 15.6 139.0 205.2
1996 1,654 1,192 462 15.8 139.2 229.9
1997 1,808 1,315 493 15.8 147.1 242.8
1998 1,984 1,415 569 15.9 155.7 272.5
1999 2,090 1,558 532 15.7 168.6 253.1
2000 2,474 1,858 615 15.7 220.3 298.5
20012   2,458 1,860 597 15.8 219.4 282.5
20022 -- -- 566 -- 197.9 278.8
*Low precision; no estimate reported.
-- Not available.
NOTE: Comparisons between years, particularly between recent estimates and those from 10 or more years prior, should be made with caution due to potential reporting and other biases.
1 The numerator of each rate is the number of males in the age group who first used the drug in the year, while the denominator is the person-time exposure of males in the age group measured in thousands of years.
2 Estimated using 2003 data only.
Source: SAMHSA, Office of Applied Studies, National Survey on Drug Use and Health, 2002 and 2003.

40618

Table  4.36A Numbers (in Thousands) of Males Who First Used Alcohol in the United States by Underage and Legal Drinking Age Groups, Their Mean Age at First Use, and Rates of First Use (Per 1,000 Person-Years of Exposure): 1965-2002, Based on 2002 and 2003 NSDUHs
YEAR NUMBER OF INITIATES (1,000s) MEAN
AGE		 AGE-SPECIFIC RATES1
All Ages Under 21 21 or Older 12–20 21–25
1965 1,803 1,618 185 16.5 172.1 193.9
1966 1,554 1,486 68 15.9 158.7 82.4