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Source: Monitoring the Future, Vol II (2009), Table 5-2, pp. 151-152
Ratios of Cocaine Use vs Alcohol and Marijuana Use Among 19 to 28 Year Olds -- Past Year Use | ||
---|---|---|
Year | vs Alcohol | vs Marijuana |
1986 | 0.22 | 0.54 |
1987 | 0.18 | 0.45 |
1988 | 0.16 | 0.43 |
1989 | 0.12 | 0.37 |
1990 | 0.10 | 0.33 |
1991 | 0.07 | 0.26 |
1992 | 0.07 | 0.23 |
1993 | 0.06 | 0.19 |
1994 | 0.05 | 0.17 |
1995 | 0.05 | 0.17 |
1996 | 0.05 | 0.15 |
1997 | 0.05 | 0.17 |
1998 | 0.06 | 0.18 |
1999 | 0.06 | 0.20 |
2000 | 0.06 | 0.19 |
2001 | 0.07 | 0.20 |
2002 | 0.07 | 0.20 |
2003 | 0.08 | 0.23 |
2004 | 0.08 | 0.24 |
2005 | 0.08 | 0.24 |
2006 | 0.08 | 0.24 |
2007 | 0.07 | 0.22 |
2008 | 0.07 | 0.21 |
Average | 0.09 | 0.25 |
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