Year |
Age |
Age |
Age |
Age |
Total |
12-17 |
18-24 |
25-34 |
35+ |
||
|
1991
|
429,169
|
768,620
|
301,900
|
284,174
|
1,783,863
|
|
1992
|
313,360
|
541,539
|
255,192
|
40,492
|
1,150,583
|
|
1993
|
374,732
|
658,958
|
306,479
|
237,895
|
1,578,064
|
|
1994
|
514,532
|
741,291
|
149,245
|
290,891
|
1,695,959
|
|
1995
|
550,667
|
459,861
|
212,047
|
264,443
|
1,487,018
|
|
1996
|
na
|
na
|
na
|
na
|
na
|
|
1997
|
na
|
na
|
na
|
na
|
na
|
|
1998
|
779,579
|
1,469,104
|
332,633
|
430,579
|
3,011,895
|
|
1999
|
880,494
|
1,502,263
|
501,550
|
1,000,056
|
3,884,363
|
|
2000
|
805,710
|
1,457,380
|
392,424
|
792,184
|
3,447,698
|
|
2001
|
843,770
|
1,620,069
|
493,589
|
1,110,636
|
4,068,064
|
|
2002
|
1,080,549
|
1,840,911
|
767,800
|
903,633
|
4,592,893
|
|
2003
|
943,238
|
1,861,573
|
561,961
|
1,107,481
|
4,474,253
|
|
2004
|
967,419
|
1,930,223
|
613,244
|
1,013,707
|
4,524,593
|
|
2005
|
814,924
|
1,916,607
|
790,906
|
1,013,388
|
4,535,825
|
Source: National Survey on Drug Use and Health; National Household Survey on Drug Abuse; Substance Abuse and Mental Health Services Administration (SAMHSA), Department of Health and Human Services.