Ratios of Past Year Amphetamine Use vs Marijuana Use Among 8th, 10th and 12th Grade Students

Source: Monitoring the Future

Ratios of Amphetamine to Marijuana Use -- Past Year Use (1991 - 2005)
Year 12th Grade 10th Grade 8th Grade
1991 0.34 0.50 1.00
1992 0.32 0.54 0.90
1993 0.32 0.50 0.78
1994 0.31 0.40 0.61
1995 0.27 0.41 0.55
1996 0.27 0.37 0.50
1997 0.26 0.35 0.46
1998 0.27 0.34 0.43
1999 0.27 0.32 0.42
2000 0.29 0.34 0.42
2001 0.29 0.36 0.44
2002 0.31 0.35 0.38
2003 0.28 0.32 0.43
2004 0.29 0.31 0.42
2005 0.26 0.29 0.40
Averages: 0.29 0.39 0.55

Navigate to Other Available Data

Lifetime vs Marijuana Past Month vs Marijuana New Use vs Marijuana
Use Ratios Among Age 19 to 28 Use Ratios Among College Students Use Ratios Among 12th Grade Students
Other Drugs vs Marijuana Use Ratios Amphetamine vs Alcohol Use Ratios Youth Drug Use Overview

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