Ratios of Lifetime Heroin 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 Heroin to Marijuana Use -- Lifetime Use (1986 - 2004)
Year Ages 19 to 28 College Students 12th Grade Students
1986 0.020 0.007 0.022
1987 0.020 0.011 0.024
1988 0.017 0.006 0.023
1989 0.016 0.014 0.030
1990 0.015 0.006 0.032
1991 0.015 0.011 0.025
1992 0.016 0.011 0.037
1993 0.016 0.014 0.031
1994 0.015 0.002 0.031
1995 0.021 0.014 0.038
1996 0.024 0.016 0.040
1997 0.024 0.020 0.042
1998 0.029 0.034 0.041
1999 0.031 0.018 0.040
2000 0.033 0.033 0.049
2001 0.036 0.024 0.037
2002 0.032 0.020 0.036
2003 0.033 0.020 0.033
2004 0.033 0.018 0.033
Averages: 0.023 0.016 0.034

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Past Year vs Marijuana Past Month 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 Heroin vs Alcohol Use Ratios Big Picture Drug Use Overview

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