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Monitoring the Future -- Trends in Past Year Marijuana Use
vs Alcohol Use by Adolescents (1991 - 2008)

Overview of adolescent drug use trend comparisons 12th Grade Drug Use Trend Comparisons 10th Grade Drug Use Trend Comparisons 8th Grade Drug Use Trend Comparisons

Source: Monitoring the Future, Vol I (2009), Table 5-5a, pp. 206-209

Ratios of Marijuana Use to Alcohol Use Among High School Students -- Past-Year Use (1991 - 2008)
Year 12th Grade 10th Grade 8th Grade
1991 0.31 0.23 0.11
1992 0.29 0.22 0.13
1993 0.36 0.30 0.20
1994 0.42 0.39 0.28
1995 0.47 0.45 0.35
1996 0.49 0.52 0.39
1997 0.51 0.53 0.39
1998 0.50 0.50 0.39
1999 0.51 0.50 0.38
2000 0.50 0.49 0.36
2001 0.50 0.51 0.37
2002 0.51 0.51 0.38
2003 0.50 0.48 0.34
2004 0.49 0.47 0.32
2005 0.49 0.47 0.36
2006 0.47 0.45 0.35
2007 0.48 0.44 0.32
2008 0.49 0.46 0.34

Other Available Trend and Comparison Data
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Ratios of Marijuana Use vs Alcohol Use Across High School Demographics
Lifetime Marijuana Use vs Alcohol Past Month Marijuana Use vs Alcohol Comparisons Across Young Adult Demographics

Comparison Trends by Specific High School Demographics
8th Grade Students 10th Grade Students 12th Grade Students

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