Table 4. Percentage Prevalence of Monthly Marijuana Use, by Age (1990 – 2005)

Year

Age

Age

Age

Age

Total

17-Dec

18-24

25-34

35+

1990
5.20%
12.70%
8.60%
1.90%
5.10%
1991
4.30%
13.00%
7.00%
2.10%
4.80%
1992
4.00%
11.00%
8.20%
1.60%
4.40%
1993
4.90%
11.10%
6.70%
1.90%
4.30%
1994
6.00%
12.10%
6.90%
2.30%
4.80%
1995
8.20%
12.00%
6.70%
1.80%
4.70%
1996
7.10%
13.20%
6.30%
2.00%
4.70%
1997
9.40%
12.80%
6.00%
2.60%
5.10%
1998
8.30%
13.80%
5.50%
2.50%
5.00%
1999
7.20%
14.20%
5.40%
2.20%
4.70%
2000
7.20%
13.60%
5.90%
2.30%
4.80%
2001
8.00%
16.00%
6.80%
2.40%
5.40%
2002
8.20%
17.30%
7.70%
3.10%
6.20%
2003
8.00%
17.20%
8.70%
2.90%
6.20%
2004
7.50%
16.40%
8.40%
3.10%
6.10%
2005
6.80%
16.80%
8.70%
2.90%
6.00%

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.

 
 
  
 
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