Year |
Age |
Age |
Age |
Age |
Total |
12-17 |
18-24 |
25-34 |
35+ |
||
|
1990
|
11.30%
|
24.60%
|
18.00%
|
3.60%
|
10.20%
|
|
1991
|
10.10%
|
24.50%
|
14.40%
|
4.00%
|
9.50%
|
|
1992
|
8.10%
|
22.70%
|
14.30%
|
3.30%
|
8.50%
|
|
1993
|
10.10%
|
22.90%
|
13.80%
|
4.00%
|
9.00%
|
|
1994
|
11.40%
|
21.80%
|
11.50%
|
4.10%
|
8.50%
|
|
1995
|
14.20%
|
21.80%
|
11.80%
|
3.40%
|
8.40%
|
|
1996
|
13.00%
|
23.80%
|
11.30%
|
3.80%
|
8.60%
|
|
1997
|
15.80%
|
22.30%
|
11.20%
|
4.40%
|
9.00%
|
|
1998
|
14.10%
|
24.10%
|
9.70%
|
4.10%
|
8.60%
|
|
1999
|
14.20%
|
24.30%
|
10.20%
|
4.00%
|
8.60%
|
|
2000
|
13.30%
|
23.70%
|
10.40%
|
3.80%
|
8.30%
|
|
2001
|
15.10%
|
26.70%
|
11.90%
|
4.10%
|
9.30%
|
|
2002
|
15.80%
|
29.70%
|
14.20%
|
5.40%
|
11.00%
|
|
2003
|
15.20%
|
28.70%
|
14.60%
|
5.20%
|
10.80%
|
|
2004
|
14.50%
|
28.50%
|
13.90%
|
5.40%
|
10.70%
|
|
2005
|
13.20%
|
28.30%
|
15.00%
|
5.10%
|
10.50%
|
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.