Source: Monitoring the Future
| Ratios of Other Narcotic Use vs Marijuana Use and Alcohol Use Among Those Ages 19 to 28 -- Past Year (1986 - 2004) | |||
|---|---|---|---|
| Year | Other Narcotic Use Rate (%) | Ratio vs Marijuana | Ratio vs Alcohol |
| 1986 | 3.1 | 0.08 | 0.035 |
| 1987 | 3.1 | 0.09 | 0.035 |
| 1988 | 2.7 | 0.08 | 0.030 |
| 1989 | 2.8 | 0.10 | 0.032 |
| 1990 | 2.7 | 0.10 | 0.031 |
| 1991 | 2.5 | 0.11 | 0.029 |
| 1992 | 2.5 | 0.10 | 0.029 |
| 1993 | 2.2 | 0.09 | 0.026 |
| 1994 | 2.5 | 0.10 | 0.030 |
| 1995 | 3.0 | 0.11 | 0.035 |
| 1996 | 2.9 | 0.11 | 0.035 |
| 1997 | 3.3 | 0.12 | 0.039 |
| 1998 | 3.4 | 0.12 | 0.040 |
| 1999 | 3.8 | 0.14 | 0.045 |
| 2000 | 4.1 | 0.15 | 0.049 |
| 2001 | 5.0 | 0.17 | 0.059 |
| 2002 | 7.1 | 0.24 | 0.084 |
| 2003 | 8.5 | 0.29 | 0.102 |
| 2004 | 9.0 | 0.31 | 0.107 |
| Averages: | 3.9 | 0.14 | 0.046 |
| Lifetime Ratios of Use | Past Month Ratios of Use | Use Ratios vs Alcohol |
| Use Ratios vs Marijuana | Age 19 to 28 Other Narcotic Use | Comparisons Across Demographics |
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