Scaled View of Graphic
Source: Monitoring the Future
| Ratios of Heroin to Alcohol Use -- Lifetime Use (1991 - 2005) | |||
|---|---|---|---|
| Year | 12th Grade | 10th Grade | 8th Grade |
| 1991 | 0.010 | 0.014 | 0.017 |
| 1992 | 0.014 | 0.015 | 0.020 |
| 1993 | 0.014 | 0.018 | 0.025 |
| 1994 | 0.015 | 0.021 | 0.036 |
| 1995 | 0.020 | 0.024 | 0.042 |
| 1996 | 0.023 | 0.029 | 0.043 |
| 1997 | 0.026 | 0.029 | 0.039 |
| 1998 | 0.025 | 0.033 | 0.044 |
| 1999 | 0.025 | 0.033 | 0.044 |
| 2000 | 0.030 | 0.031 | 0.037 |
| 2001 | 0.023 | 0.024 | 0.034 |
| 2002 | 0.022 | 0.027 | 0.034 |
| 2003 | 0.020 | 0.023 | 0.035 |
| 2004 | 0.020 | 0.023 | 0.036 |
| 2005 | 0.020 | 0.024 | 0.037 |
| Averages: | 0.020 | 0.025 | 0.035 |
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