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Source: Monitoring the Future (2009), Vol II, Tables 5-1, 5-2, and 5-3, pp.148-154
| Trends in Crack Use Among Those Ages 19 to 28 (1986 - 2008) | |||
|---|---|---|---|
| Year | Lifetime | Past Year | Past Month |
| 1986 | -- | 3.2 | -- |
| 1987 | 6.3 | 3.1 | 1.0 |
| 1988 | 6.9 | 3.1 | 1.2 |
| 1989 | 6.1 | 2.5 | 0.7 |
| 1990 | 5.1 | 1.6 | 0.4 |
| 1991 | 4.8 | 1.2 | 0.4 |
| 1992 | 5.1 | 1.4 | 0.4 |
| 1993 | 4.3 | 1.3 | 0.4 |
| 1994 | 4.4 | 1.1 | 0.3 |
| 1995 | 3.8 | 1.1 | 0.2 |
| 1996 | 3.9 | 1.1 | 0.3 |
| 1997 | 3.6 | 1.0 | 0.3 |
| 1998 | 3.8 | 1.1 | 0.3 |
| 1999 | 4.3 | 1.4 | 0.4 |
| 2000 | 4.6 | 1.2 | 0.4 |
| 2001 | 4.7 | 1.3 | 0.4 |
| 2002 | 4.3 | 1.0 | 0.3 |
| 2003 | 4.7 | 1.0 | 0.3 |
| 2004 | 4.2 | 1.3 | 0.3 |
| 2005 | 4.1 | 1.2 | 0.3 |
| 2006 | 4.4 | 1.1 | 0.3 |
| 2007 | 3.9 | 1.0 | 0.3 |
| 2008 | 4.3 | 0.9 | 0.4 |
| Averages: | 4.6 | 1.5 | 0.4 |
| 8th Grade Students | 10th Grade Students | 12th Grade Students |
| College Students | Comparison of Trends Among School Age Youth | Comparison of Trends Among Young Adults |
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