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Monitoring the Future -- Marijuana Use
Trends Among 8th Grade Students (1991 - 2008)

Source: Monitoring the Future (2009), Vol I, Tables 5-5a, 5-5b, and 5-5c, pp.202-213

Trends in Marijuana Use Among 8th Grade Students (1991 - 2008)
Year Lifetime Past Year Past Month
1991 10.2 6.2 3.2
1992 11.2 7.2 3.7
1993 12.6 9.2 5.1
1994 16.7 13.0 7.8
1995 19.9 15.8 9.1
1996 23.1 18.3 11.3
1997 22.6 17.7 10.2
1998 22.2 16.9 9.7
1999 22.0 16.5 9.7
2000 20.3 15.6 9.1
2001 20.4 15.4 9.2
2002 19.2 14.6 8.3
2003 17.5 12.8 7.5
2004 16.3 11.8 6.4
2005 16.5 12.2 6.6
2006 15.7 11.7 6.5
2007 14.2 10.3 5.7
2008 14.6 10.9 5.8
Averages: 17.5 13.1 7.5

Drug Use Trends Among Other MTF Demographic Groups
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10th Grade Students 12th Grade Students College Students
Age 19 to 28 Comparison of Trends Among School Age Youth Comparison of Trends Among Young Adults

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