Source: Monitoring the Future
| Comparison Trends in LSD Use -- Lifetime Use (1986 - 2004) | |||
|---|---|---|---|
| Year | Ages 19 to 28 | College Students | 12th Grade Students |
| 1986 | 14.6 | 7.7 | 7.2 |
| 1987 | 13.7 | 8.0 | 8.4 |
| 1988 | 13.8 | 7.5 | 7.7 |
| 1989 | 12.7 | 7.8 | 8.3 |
| 1990 | 13.5 | 9.1 | 8.7 |
| 1991 | 13.5 | 9.6 | 8.8 |
| 1992 | 13.8 | 10.6 | 8.6 |
| 1993 | 13.6 | 10.6 | 10.3 |
| 1994 | 13.8 | 9.2 | 10.5 |
| 1995 | 14.5 | 11.5 | 11.7 |
| 1996 | 15.0 | 10.8 | 12.6 |
| 1997 | 15.0 | 11.7 | 13.6 |
| 1998 | 15.7 | 13.1 | 12.6 |
| 1999 | 16.2 | 12.7 | 12.2 |
| 2000 | 16.4 | 11.8 | 11.1 |
| 2001 | 16.0 | 12.2 | 10.9 |
| 2002 | 15.1 | 8.6 | 8.4 |
| 2003 | 14.6 | 8.7 | 5.9 |
| 2004 | 13.4 | 5.6 | 4.6 |
| Averages: | 14.5 | 9.8 | 9.6 |
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