Ratios of Heroin Use to Marijuana Use by 12th Grade Students


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Source: Monitoring the Future

Ratios of Heroin Use vs Marijuana Use Among 12th Grade Students (1975 - 2005)
Year Lifetime Past Year Past Month
1975 0.047 0.025 0.015
1976 0.034 0.018 0.006
1977 0.032 0.017 0.008
1978 0.027 0.016 0.008
1979 0.018 0.010 0.005
1980 0.018 0.010 0.006
1981 0.018 0.011 0.006
1982 0.020 0.014 0.007
1983 0.021 0.014 0.007
1984 0.024 0.013 0.012
1985 0.022 0.015 0.012
1986 0.022 0.013 0.009
1987 0.024 0.014 0.010
1988 0.023 0.015 0.011
1989 0.030 0.020 0.018
1990 0.032 0.019 0.014
1991 0.025 0.017 0.014
1992 0.037 0.027 0.025
1993 0.031 0.019 0.013
1994 0.031 0.020 0.016
1995 0.038 0.032 0.028
1996 0.040 0.028 0.023
1997 0.042 0.031 0.021
1998 0.041 0.027 0.022
1999 0.040 0.029 0.022
2000 0.049 0.041 0.032
2001 0.037 0.024 0.018
2002 0.036 0.028 0.023
2003 0.033 0.023 0.019
2004 0.033 0.026 0.025
2005 0.033 0.024 0.025
Averages: 0.031 0.021 0.016

Navigate to Other Available Data

12th Grade Heroin Use Overview Heroin vs Alcohol Use Ratios Comparison Use Ratios vs Both Marijuana & Marijuana
8th Grade Use Ratios vs Marijuana 10th Grade Use Ratios vs Marijuana College Use Ratios vs Marijuana
Age 19 to 28 Use Ratios vs Marijuana Use Across 8th, 10th and 12th Grades Use Across 12th Grade, College Students, and Young Adults

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