Ratios of Lifetime Amphetamine Use to Marijuana and Alcohol Use by Those Ages 19 to 28

Source: Monitoring the Future

Ratios of Amphetamine Use vs Marijuana Use and Alcohol Use Among Those Ages 19 to 28 -- Lifetime (1986 - 2004)
Year Amphetamine Use Rate (%) Ratio vs Marijuana Ratio vs Alcohol
1986 32.3 0.49 0.34
1987 30.8 0.47 0.32
1988 28.8 0.45 0.30
1989 25.3 0.40 0.27
1990 24.4 0.41 0.26
1991 22.4 0.38 0.24
1992 20.2 0.36 0.22
1993 18.7 0.33 0.20
1994 17.1 0.32 0.19
1995 16.6 0.31 0.18
1996 15.3 0.29 0.17
1997 14.6 0.27 0.16
1998 14.3 0.26 0.16
1999 14.1 0.26 0.16
2000 15.0 0.27 0.17
2001 15.0 0.27 0.17
2002 14.8 0.26 0.16
2003 15.2 0.27 0.17
2004 15.9 0.28 0.18
Averages: 19.5 0.33 0.21

Navigate to Other Available Data

Age 19 to 28 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 12th Grade Use Ratios College Use Ratios

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