Source: Monitoring the Future
| Hallucinogen Use Among Those Ages 19 to 28 (1986 - 2004) | |||
|---|---|---|---|
| Year | Lifetime | Past Year | Past Month |
| 1986 | 18.5 | 4.5 | 1.3 |
| 1987 | 17.1 | 4.0 | 1.2 |
| 1988 | 17.0 | 3.9 | 1.1 |
| 1989 | 15.9 | 3.6 | 1.1 |
| 1990 | 16.1 | 4.1 | 0.9 |
| 1991 | 15.7 | 4.5 | 1.1 |
| 1992 | 15.7 | 5.0 | 1.5 |
| 1993 | 15.4 | 4.5 | 1.2 |
| 1994 | 15.4 | 4.8 | 1.4 |
| 1995 | 16.1 | 5.6 | 1.7 |
| 1996 | 16.4 | 5.6 | 1.2 |
| 1997 | 16.7 | 5.8 | 1.5 |
| 1998 | 17.4 | 5.2 | 1.4 |
| 1999 | 18.0 | 5.4 | 1.3 |
| 2000 | 18.4 | 5.4 | 1.2 |
| 2001 | 18.3 | 5.4 | 1.2 |
| 2002 | 19.6 | 4.7 | 0.9 |
| 2003 | 19.7 | 5.2 | 1.2 |
| 2004 | 19.3 | 4.7 | 0.9 |
| Averages: | 17.2 | 4.8 | 1.2 |
| Ratios of Use vs Alcohol Use | Ratios of Use vs Marijuana Use | Ratios vs Marijuana & Alcohol |
| 8th Grade Students | 10th Grade Students | 12th Grade Students |
| College Students | Age 19 to 28 Drug Use Overview | Initiation of Use |
| 8th, 10th & 12th Grade Students | 12th Grade, College & Age 19 to 28 |
| truth: the Anti-drugwar | Anti-drugwar Arsenal | Accept the $1 Challenge |