Ratios of Past Month Crack Use vs Marijuana Use Among Those Ages 19 to 28, College Students, and 12th Grade Students


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Source: Monitoring the Future

Ratios of Crack to Marijuana Use -- Past Month Use (1986 - 2004)
Year Ages 19 to 28 College Students 12th Grade Students
1986 -- -- --
1987 0.048 0.020 0.062
1988 0.067 0.030 0.089
1989 0.045 0.012 0.084
1990 0.029 0.007 0.050
1991 0.030 0.021 0.051
1992 0.030 0.007 0.050
1993 0.030 0.007 0.045
1994 0.021 0.007 0.042
1995 0.014 0.005 0.047
1996 0.020 0.006 0.046
1997 0.020 0.011 0.038
1998 0.020 0.011 0.044
1999 0.026 0.014 0.048
2000 0.025 0.015 0.046
2001 0.024 0.005 0.049
2002 0.018 0.015 0.056
2003 0.017 0.021 0.042
2004 0.018 0.021 0.050
Averages: 0.028 0.013 0.052

Navigate to Other Available Data

Lifetime vs Marijuana Past Year vs Marijuana New Use vs Marijuana
Use Ratios Among Age 19 to 28 Use Ratios Among College Students Use Ratios Among 12th Grade Students
Other Drugs vs Marijuana Use Ratios Crack vs Alcohol Use Ratios Big Picture Drug Use Overview

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