Source: Monitoring the Future
| Ratios of Other Narcotic Use vs Alcohol Use Among Those Ages 19 to 28 (1986 - 2004) | |||
|---|---|---|---|
| Year | Lifetime | Past Year | Past Month |
| 1986 | 0.11 | 0.03 | 0.012 |
| 1987 | 0.11 | 0.03 | 0.012 |
| 1988 | 0.10 | 0.03 | 0.009 |
| 1989 | 0.10 | 0.03 | 0.010 |
| 1990 | 0.10 | 0.03 | 0.010 |
| 1991 | 0.10 | 0.03 | 0.008 |
| 1992 | 0.10 | 0.03 | 0.010 |
| 1993 | 0.09 | 0.03 | 0.010 |
| 1994 | 0.09 | 0.03 | 0.009 |
| 1995 | 0.10 | 0.04 | 0.013 |
| 1996 | 0.09 | 0.03 | 0.010 |
| 1997 | 0.10 | 0.04 | 0.013 |
| 1998 | 0.10 | 0.04 | 0.013 |
| 1999 | 0.11 | 0.05 | 0.018 |
| 2000 | 0.11 | 0.05 | 0.021 |
| 2001 | 0.13 | 0.06 | 0.025 |
| 2002 | 0.15 | 0.08 | 0.042 |
| 2003 | 0.19 | 0.10 | 0.043 |
| 2004 | 0.20 | 0.11 | 0.044 |
| Averages: | 0.11 | 0.05 | 0.018 |
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