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Monitoring the Future -- Trends in Tranquilizer Use
vs Marijuana Use Among 10th Grade Students


Comparison Trends in Drug Use by 10th Grade Students Lifetime Tranquilizer Use vs Alcohol and Marijuana (1991 - 2008) Trends in Past Year Tranquilizer Use vs Alcohol and Marijuana (1991 - 2008) Trends in Past Month Tranquilizer Use vs Alcohol and Marijuana (1991 - 2008)

Source: Monitoring the Future, Vol I (2009), Tables 5-5a, 5-5b and 5-5c, pp. 202-13

Ratios of Tranquilizer Use vs Marijuana Use Among 10th Grade Students (1991 - 2008)
Year Lifetime Past Year Past Month
1991 0.25 0.19 0.14
1992 0.28 0.23 0.19
1993 0.23 0.17 0.10
1994 0.18 0.13 0.09
1995 0.18 0.14 0.10
1996 0.18 0.14 0.08
1997 0.17 0.14 0.11
1998 0.20 0.16 0.12
1999 0.19 0.17 0.11
2000 0.20 0.17 0.13
2001 0.23 0.22 0.15
2002 0.23 0.21 0.16
2003 0.21 0.19 0.14
2004 0.21 0.19 0.14
2005 0.21 0.18 0.15
2006 0.23 0.21 0.17
2007 0.24 0.22 0.18
2008 0.23 0.19 0.14


Other Available Trend and Comparison Data
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Tranquilizer Use vs Alcohol -- 10th Grade Tranquilizer Use vs Marijuana -- 8th Grade Tranquilizer Use vs Marijuana -- 12th Grade

Comparison Trends Overview by Demographic Group

8th Grade Students 10th Grade Students 12th Grade Students


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