Source: Monitoring the Future
| Ratios of Other Narcotic Use vs Marijuana Use and Alcohol Use Among 12th Grade Students -- Past Year (1975 - 2005) | |||
|---|---|---|---|
| Year | Other Narcotic Use Rate (%) | Ratio vs Marijuana | Ratio vs Alcohol |
| 1975 | 5.7 | 0.14 | 0.07 |
| 1976 | 5.7 | 0.13 | 0.07 |
| 1977 | 6.4 | 0.13 | 0.07 |
| 1978 | 6.0 | 0.12 | 0.07 |
| 1979 | 6.2 | 0.12 | 0.07 |
| 1980 | 6.3 | 0.13 | 0.07 |
| 1981 | 5.9 | 0.13 | 0.07 |
| 1982 | 5.3 | 0.12 | 0.06 |
| 1983 | 5.1 | 0.12 | 0.06 |
| 1984 | 5.2 | 0.13 | 0.06 |
| 1985 | 5.9 | 0.15 | 0.07 |
| 1986 | 5.2 | 0.13 | 0.06 |
| 1987 | 5.3 | 0.15 | 0.06 |
| 1988 | 4.6 | 0.14 | 0.05 |
| 1989 | 4.4 | 0.15 | 0.05 |
| 1990 | 4.5 | 0.17 | 0.06 |
| 1991 | 3.5 | 0.15 | 0.05 |
| 1992 | 3.3 | 0.15 | 0.04 |
| 1993 | 3.6 | 0.14 | 0.05 |
| 1994 | 3.8 | 0.12 | 0.05 |
| 1995 | 4.7 | 0.14 | 0.06 |
| 1996 | 5.4 | 0.15 | 0.07 |
| 1997 | 6.2 | 0.16 | 0.08 |
| 1998 | 6.3 | 0.17 | 0.08 |
| 1999 | 6.7 | 0.18 | 0.09 |
| 2000 | 7.0 | 0.19 | 0.10 |
| 2001 | 6.7 | 0.18 | 0.09 |
| 2002 | 9.4 | 0.26 | 0.13 |
| 2003 | 9.3 | 0.27 | 0.13 |
| 2004 | 9.5 | 0.28 | 0.13 |
| 2005 | 9.0 | 0.27 | 0.13 |
| Averages: | 5.9 | 0.16 | 0.07 |
| Lifetime Ratios of Use | Past Month Ratios of Use | Use Ratios vs Alcohol |
| Use Ratios vs Marijuana | 12th Grade Other Narcotic Use | Comparisons Across Demographics |
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