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

Source: Monitoring the Future

Ratios of Amphetamine Use vs Marijuana Use and Alcohol Use Among 12th Grade Students -- Past Year (1975 - 2005)
Year Amphetamine Use Rate (%) Ratio vs Marijuana Ratio vs Alcohol
1975 16.2 0.41 0.19
1976 15.8 0.36 0.18
1977 16.3 0.34 0.19
1978 17.1 0.34 0.19
1979 18.3 0.36 0.21
1980 20.8 0.43 0.24
1981 26.0 0.56 0.30
1982 20.3 0.46 0.23
1983 17.9 0.42 0.21
1984 17.7 0.44 0.21
1985 15.8 0.39 0.18
1986 13.4 0.35 0.16
1987 12.2 0.34 0.14
1988 10.9 0.33 0.13
1989 10.8 0.36 0.13
1990 9.1 0.34 0.11
1991 8.2 0.34 0.11
1992 7.1 0.32 0.09
1993 8.4 0.32 0.12
1994 9.4 0.31 0.13
1995 9.3 0.27 0.13
1996 9.5 0.27 0.13
1997 10.2 0.26 0.14
1998 10.1 0.27 0.14
1999 10.2 0.27 0.14
2000 10.5 0.29 0.14
2001 10.9 0.29 0.15
2002 11.1 0.31 0.16
2003 9.9 0.28 0.14
2004 10.0 0.29 0.14
2005 8.6 0.26 0.13
Averages: 13.0 0.34 0.16

Navigate to Other Available Data

12th Grade Amphetamine 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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