Ratios of Past year Heroin Use vs Marijuana Use Among 8th, 10th and 12th Grade Students

Source: Monitoring the Future

Ratios of Heroin to Marijuana Use -- Past Year Use (1991 - 2005)
Year 12th Grade 10th Grade 8th Grade
1991 0.017 0.030 0.113
1992 0.027 0.039 0.097
1993 0.019 0.036 0.076
1994 0.020 0.036 0.092
1995 0.032 0.038 0.089
1996 0.028 0.036 0.087
1997 0.031 0.040 0.073
1998 0.027 0.045 0.077
1999 0.029 0.044 0.085
2000 0.041 0.043 0.071
2001 0.024 0.028 0.065
2002 0.028 0.036 0.062
2003 0.023 0.025 0.070
2004 0.026 0.033 0.085
2005 0.024 0.034 0.066
Averages: 0.027 0.036 0.082

Navigate to Other Available Data

Lifetime vs Marijuana Past Month vs Marijuana New Use vs Marijuana
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