Ratios of Past Month 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 Month (1975 - 2005)
Year Amphetamine Use Rate (%) Ratio vs Marijuana Ratio vs Alcohol
1975 8.5 0.31 0.12
1976 7.7 0.24 0.11
1977 8.8 0.25 0.12
1978 8.7 0.23 0.12
1979 9.9 0.27 0.14
1980 12.1 0.36 0.17
1981 15.8 0.50 0.22
1982 10.7 0.38 0.15
1983 8.9 0.33 0.13
1984 8.3 0.33 0.12
1985 6.8 0.26 0.10
1986 5.5 0.24 0.08
1987 5.2 0.25 0.08
1988 4.6 0.26 0.07
1989 4.2 0.25 0.07
1990 3.7 0.26 0.06
1991 3.2 0.23 0.06
1992 2.8 0.24 0.05
1993 3.7 0.24 0.08
1994 4.0 0.21 0.08
1995 4.0 0.19 0.08
1996 4.1 0.19 0.08
1997 4.8 0.20 0.09
1998 4.6 0.20 0.09
1999 4.5 0.19 0.09
2000 5.0 0.23 0.10
2001 5.6 0.25 0.11
2002 5.5 0.26 0.11
2003 5.0 0.24 0.11
2004 4.6 0.23 0.10
2005 3.9 0.20 0.08
Averages: 6.3 0.26 0.10

Navigate to Other Available Data

12th Grade Amphetamine Use Overview Lifetime Ratios of Use Past Year 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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