Ratios of Past Year Amphetamine Use to Marijuana and Alcohol Use by 8th Grade Students

Source: Monitoring the Future

Ratios of Amphetamine Use vs Marijuana Use and Alcohol Use Among 8th Grade Students -- Past Year (1991 - 2005)
Year Amphetamine Use Rate (%) Ratio vs Marijuana Ratio vs Alcohol
1991 6.2 1.00 0.11
1992 6.5 0.90 0.12
1993 7.2 0.78 0.16
1994 7.9 0.61 0.17
1995 8.7 0.55 0.19
1996 9.1 0.50 0.20
1997 8.1 0.46 0.18
1998 7.2 0.43 0.16
1999 6.9 0.42 0.16
2000 6.5 0.42 0.15
2001 6.7 0.44 0.16
2002 5.5 0.38 0.14
2003 5.5 0.43 0.15
2004 4.9 0.42 0.13
2005 4.9 0.40 0.14
Averages: 6.9 0.55 0.16

Navigate to Other Available Data

8th Grade Amphetamine Use Overview Lifetime Ratios of Use Past Month Ratios of Use
Use Ratios vs Alcohol Use Ratios vs Marijuana 10th Grade Use Ratios
12th Grade Use Ratios College Use Ratios Age 19 to 28 Use Ratios

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