Ratios of Lifetime 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 -- Lifetime (1975 - 2005)
Year Amphetamine Use Rate (%) Ratio vs Marijuana Ratio vs Alcohol
1975 22.3 0.47 0.25
1976 22.6 0.43 0.25
1977 23.0 0.41 0.25
1978 22.9 0.39 0.25
1979 24.2 0.40 0.26
1980 26.4 0.44 0.28
1981 32.2 0.54 0.35
1982 27.9 0.48 0.30
1983 26.9 0.47 0.29
1984 27.9 0.51 0.30
1985 26.2 0.48 0.28
1986 23.4 0.46 0.26
1987 21.6 0.43 0.23
1988 19.8 0.42 0.22
1989 19.1 0.44 0.21
1990 17.5 0.43 0.20
1991 15.4 0.42 0.18
1992 13.9 0.43 0.16
1993 15.1 0.43 0.19
1994 15.7 0.41 0.20
1995 15.3 0.37 0.19
1996 15.3 0.34 0.19
1997 16.5 0.33 0.20
1998 16.4 0.33 0.20
1999 16.3 0.33 0.20
2000 15.6 0.32 0.19
2001 16.2 0.33 0.20
2002 16.8 0.35 0.21
2003 14.4 0.31 0.19
2004 15.0 0.33 0.20
2005 13.1 0.29 0.17
Averages: 19.8 0.40 0.23

Navigate to Other Available Data

12th Grade Amphetamine Use Overview Past Year 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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