Graphed as number of users age 12 and older
| Sources: | National Survey on Drug Use and Health National Household Survey on Drug Abuse |
| Multiple Years | |
Click labels in graphic or table headers for other details
| Marijuana Use Among Those 12 and Older (Percent of Population) | |||
|---|---|---|---|
| Year | Ever Used | Past Year | Past Month |
| 1979 | 27.9 | 16.6 | 13.2 |
| 1982 | 28.6 | 15.9 | 11.5 |
| 1985 | 29.4 | 13.6 | 9.7 |
| 1988 | 30.6 | 9.8 | 6.2 |
| 1991 | 30.5 | 8.9 | 5.1 |
| 1992 | 30.2 | 7.9 | 4.7 |
| 1993 | 31.0 | 8.5 | 4.6 |
| 1994 | 31.1 | 8.5 | 4.8 |
| 1995 | 31.0 | 8.4 | 4.7 |
| 1996 | 32.0 | 8.6 | 4.7 |
| 1997 | 32.9 | 9.0 | 5.1 |
| 1998 | 33.0 | 8.6 | 5.0 |
| 1999 | 34.6 | 8.6 | 4.7 |
| 2000 | 34.2 | 8.3 | 4.8 |
| 2001 | 36.9 | 9.3 | 5.4 |
| 2002 | 40.4 | 11.0 | 6.2 |
| 2003 | 40.6 | 10.6 | 6.2 |
| 2004 | 40.2 | 10.6 | 6.1 |
| 2005 | 40.1 | 10.4 | 6.0 |
| 2006 | 39.8 | 10.3 | 6.0 |