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Monitoring the Future -- Trends in Lifetime Tranquilizer Use
vs Marijuana 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 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. 202-204

Ratios of Tranquilizer Use to Marijuana Use Among High School Students -- Lifetime Use (1991 - 2008)
Year 12th Grade 10th Grade 8th Grade
1991 0.20 0.25 0.37
1992 0.18 0.28 0.37
1993 0.18 0.23 0.35
1994 0.17 0.18 0.28
1995 0.17 0.18 0.23
1996 0.16 0.18 0.23
1997 0.16 0.17 0.21
1998 0.17 0.20 0.21
1999 0.19 0.19 0.20
2000 0.18 0.20 0.22
2001 0.21 0.23 0.25
2002 0.24 0.23 0.22
2003 0.22 0.21 0.25
2004 0.23 0.21 0.25
2005 0.22 0.21 0.25
2006 0.24 0.23 0.27
2007 0.23 0.24 0.27
2008 0.21 0.23 0.27

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

Ratios of Tranquilizer Use vs Alcohol Use by Adolescents
Lifetime Tranquilizer Use vs Alcohol Past Year Tranquilizer Use vs Alcohol Past Month Tranquilizer Use vs Alcohol

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

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