Ratios of Amphetamine Use to Marijuana Use by 8th Grade Students

Source: Monitoring the Future

Ratios of Amphetamine Use vs Marijuana Use Among 8th Grade Students (1991 - 2005)
Year Lifetime Past Year Past Month
1991 1.03 1.00 0.81
1992 0.96 0.90 0.89
1993 0.94 0.78 0.71
1994 0.74 0.61 0.46
1995 0.66 0.55 0.46
1996 0.58 0.50 0.41
1997 0.54 0.46 0.37
1998 0.51 0.43 0.34
1999 0.49 0.42 0.35
2000 0.49 0.42 0.37
2001 0.50 0.44 0.35
2002 0.45 0.38 0.34
2003 0.48 0.43 0.36
2004 0.46 0.42 0.36
2005 0.45 0.40 0.35
Averages: 0.63 0.55 0.47

Navigate to Other Available Data

8th Grade Amphetamine Use Overview Amphetamine vs Alcohol Use Ratios Comparison Use Ratios vs Both Alcohol & Marijuana
10th Grade Use Ratios vs Marijuana 12th Grade Use Ratios vs Marijuana College Use Ratios vs Marijuana
Age 19 to 28 Use Ratios vs Marijuana Use Across 8th, 10th and 12th Grades Use Across 12th Grade, College Students, and Young Adults

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