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Source: Monitoring the Future (2009), Vol I, Tables 5-5a, 5-5b, and 5-5c, pp.202-213
| Trends in Tranquilizer Use Among 10th Grade Students (1991 - 2008) | |||
|---|---|---|---|
| Year | Lifetime | Past Year | Past Month |
| 1991 | 5.8 | 3.2 | 1.2 |
| 1992 | 5.9 | 3.5 | 1.5 |
| 1993 | 5.7 | 3.3 | 1.1 |
| 1994 | 5.4 | 3.3 | 1.5 |
| 1995 | 6.0 | 4.0 | 1.7 |
| 1996 | 7.1 | 4.6 | 1.7 |
| 1997 | 7.3 | 4.9 | 2.2 |
| 1998 | 7.8 | 5.1 | 2.2 |
| 1999 | 7.9 | 5.4 | 2.2 |
| 2000 | 8.0 | 5.6 | 2.5 |
| 2001 | 9.2 | 7.3 | 2.9 |
| 2002 | 8.8 | 6.3 | 2.9 |
| 2003 | 7.8 | 5.3 | 2.4 |
| 2004 | 7.3 | 5.1 | 2.3 |
| 2005 | 7.1 | 4.8 | 2.3 |
| 2006 | 7.2 | 5.2 | 2.4 |
| 2007 | 7.4 | 5.3 | 2.6 |
| 2008 | 6.8 | 4.6 | 1.9 |
| Averages: | 7.1 | 4.8 | 2.1 |
| 8th Grade Students | 12th Grade Students |
| College Students | Age 19 to 28 |
| truth: the Anti-drugwar | ||
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