Ratios of Past Year Cocaine Use to Marijuana and Alcohol Use by 12th Grade Students

Source: Monitoring the Future


Ratios of Cocaine Use vs Marijuana Use and Alcohol Use Among 12th Grade Students -- Past Year (1975 - 2005)
Year Cocaine Use Rate (%) Ratio vs Marijuana Ratio vs Alcohol
1975 5.6 0.14 0.07
1976 6.0 0.13 0.07
1977 7.2 0.15 0.08
1978 9.0 0.18 0.10
1979 12.0 0.24 0.14
1980 12.3 0.25 0.14
1981 12.4 0.27 0.14
1982 11.5 0.26 0.13
1983 11.4 0.27 0.13
1984 11.6 0.29 0.13
1985 13.1 0.32 0.15
1986 12.7 0.33 0.15
1987 10.3 0.28 0.12
1988 7.9 0.24 0.09
1989 6.5 0.22 0.08
1990 5.3 0.20 0.07
1991 3.5 0.15 0.05
1992 3.1 0.14 0.04
1993 3.3 0.13 0.05
1994 3.6 0.12 0.05
1995 4.0 0.12 0.05
1996 4.9 0.14 0.07
1997 5.5 0.14 0.07
1998 5.7 0.15 0.08
1999 6.2 0.16 0.08
2000 5.0 0.14 0.07
2001 4.8 0.13 0.07
2002 5.0 0.14 0.07
2003 4.8 0.14 0.07
2004 5.3 0.15 0.08
2005 5.1 0.15 0.07
Averages: 7.2 0.19 0.09


Navigate to Other Available Data

12th Grade Cocaine Use Overview Lifetime Ratios of Use Past Month Ratios of Use
Use Ratios vs Alcohol Use Ratios vs Marijuana 8th Grade Use Ratios
10th Grade Use Ratios College Use Ratios Age 19 to 28 Use Ratios


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