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


Comparison Trends in Drug Use by 10th Grade Students Lifetime Crack Use vs Alcohol and Marijuana (1991 - 2008) Trends in Past Year Crack Use vs Alcohol and Marijuana (1991 - 2008) Trends in Past Month Crack Use vs Alcohol and Marijuana (1991 - 2008) Comparison Trends in Drug Use by 10th Grade Students Lifetime Crack Use vs Alcohol and Marijuana (1991 - 2008) Trends in Past Year Crack Use vs Alcohol and Marijuana (1991 - 2008) Trends in Past Month Crack 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 Crack Use vs Marijuana Use Among 10th Grade Students (1991 - 2008)
Year Lifetime Past Year Past Month
1991 0.07 0.05 0.03
1992 0.07 0.06 0.05
1993 0.07 0.06 0.05
1994 0.07 0.06 0.04
1995 0.08 0.06 0.05
1996 0.08 0.06 0.04
1997 0.09 0.06 0.04
1998 0.10 0.08 0.06
1999 0.10 0.07 0.04
2000 0.09 0.07 0.05
2001 0.08 0.06 0.04
2002 0.09 0.08 0.06
2003 0.07 0.06 0.04
2004 0.07 0.06 0.05
2005 0.07 0.06 0.05
2006 0.07 0.05 0.05
2007 0.07 0.05 0.04
2008 0.07 0.05 0.04


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

Comparison Trends Overview by Demographic Group

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


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