Monitoring the Future -- Trends in Past Month Crack Use
by 8th, 10th & 12th Grade Students

Source: Monitoring the Future, Vol I (2009), Table 5-5b, pp. 210-213

Trends in Crack Use Among High School Students -- Past Month Use (1991 - 2008)
Year	12th Grade	10th Grade	8th Grade
1991	0.7	0.3	0.3
1992	0.6	0.4	0.5
1993	0.7	0.5	0.4
1994	0.8	0.6	0.7
1995	1.0	0.9	0.7
1996	1.0	0.8	0.8
1997	0.9	0.9	0.7
1998	1.0	1.1	0.9
1999	1.1	0.8	0.8
2000	1.0	0.9	0.8
2001	1.1	0.7	0.8
2002	1.2	1.0	0.8
2003	0.9	0.7	0.7
2004	1.0	0.8	0.6
2005	1.0	0.7	0.6
2006	0.9	0.7	0.6
2007	0.9	0.5	0.6
2008	0.8	0.5	0.5

Drug Use Trends for Each Demographic Group
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8th Grade Students	10th Grade Students	12th Grade Students