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Source: Monitoring the Future, Vol I (2009), Table 5-5b, pp. 206-209
| Trends in Hallucinogen Use Among High School Students -- Past Year Use (1991 - 2008) | |||
|---|---|---|---|
| Year | 12th Grade | 10th Grade | 8th Grade |
| 1991 | 5.8 | 4.0 | 1.9 |
| 1992 | 5.9 | 4.3 | 2.5 |
| 1993 | 7.4 | 4.7 | 2.6 |
| 1994 | 7.6 | 5.8 | 2.7 |
| 1995 | 9.3 | 7.2 | 3.6 |
| 1996 | 10.1 | 7.8 | 4.1 |
| 1997 | 9.8 | 7.6 | 3.7 |
| 1998 | 9.0 | 6.9 | 3.4 |
| 1999 | 9.4 | 6.9 | 2.9 |
| 2000 | 8.1 | 6.1 | 2.8 |
| 2001 | 9.1 | 6.2 | 3.4 |
| 2002 | 6.6 | 4.7 | 2.6 |
| 2003 | 5.9 | 4.1 | 2.6 |
| 2004 | 6.2 | 4.1 | 2.2 |
| 2005 | 5.5 | 4.0 | 2.4 |
| 2006 | 4.9 | 4.1 | 2.1 |
| 2007 | 5.4 | 4.4 | 1.9 |
| 2008 | 5.9 | 3.9 | 2.1 |
Drug Use Trends for Each Demographic Group
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| 8th Grade Students | 10th Grade Students | 12th Grade Students |
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