Scaled View of Graphic
Source: Monitoring the Future
| Comparison Trends in Crack Use -- Past Month Use (1991 - 2005) | |||
|---|---|---|---|
| Year | 12th Grade | 10th Grade | 8th Grade |
| 1991 | 0.7 | 0.3 | 0.3 |
| 1992 | 0.6 | 0.4 | 0.5 |
| 1993 | 0.7 | 0.5 | 0.4 |
| 1994 | 0.8 | 0.6 | 0.7 |
| 1995 | 1.0 | 0.9 | 0.7 |
| 1996 | 1.0 | 0.8 | 0.8 |
| 1997 | 0.9 | 0.9 | 0.7 |
| 1998 | 1.0 | 1.1 | 0.9 |
| 1999 | 1.1 | 0.8 | 0.8 |
| 2000 | 1.0 | 0.9 | 0.8 |
| 2001 | 1.1 | 0.7 | 0.8 |
| 2002 | 1.2 | 1.0 | 0.8 |
| 2003 | 0.9 | 0.7 | 0.7 |
| 2004 | 1.0 | 0.8 | 0.6 |
| 2005 | 1.0 | 0.7 | 0.6 |
| Averages: | 0.9 | 0.7 | 0.7 |
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