Source: Monitoring the Future
| Comparison Trends in Hallucinogen Use -- Lifetime Use (1986 - 2004) | |||
|---|---|---|---|
| Year | Ages 19 to 28 | College Students | 12th Grade Students |
| 1986 | 18.5 | 11.2 | 9.7 |
| 1987 | 17.1 | 10.9 | 10.3 |
| 1988 | 17.0 | 10.2 | 8.9 |
| 1989 | 15.9 | 10.7 | 9.4 |
| 1990 | 16.1 | 11.2 | 9.4 |
| 1991 | 15.7 | 11.3 | 9.6 |
| 1992 | 15.7 | 12.0 | 9.2 |
| 1993 | 15.4 | 11.8 | 10.9 |
| 1994 | 15.4 | 10.0 | 11.4 |
| 1995 | 16.1 | 13.0 | 12.7 |
| 1996 | 16.4 | 12.6 | 14.0 |
| 1997 | 16.7 | 13.8 | 15.1 |
| 1998 | 17.4 | 15.2 | 14.1 |
| 1999 | 18.0 | 14.8 | 13.7 |
| 2000 | 18.4 | 14.4 | 13.0 |
| 2001 | 18.3 | 14.8 | 14.7 |
| 2002 | 19.6 | 13.6 | 12.0 |
| 2003 | 19.7 | 14.5 | 10.6 |
| 2004 | 19.3 | 12.0 | 9.7 |
| Averages: | 17.2 | 12.5 | 11.5 |
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