Monitoring the Future
Past Year Heroin Use Within HS Cohort Groups

Source: University of Michigan, Monitoring The Future Studies

Past Year Heroin Use Within Cohort -- Classes of 1995 through 2003
Class of: 8th Grade 10th Grade 12th Grade
1995 0.7 0.7 1.1
1996 0.7 0.9 1.0
1997 0.7 1.1 1.2
1998 1.2 1.2 1.0
1999 1.4 1.4 1.1
2000 1.6 1.4 1.5
2001 1.3 1.4 0.9
2002 1.3 1.4 1.0
2003 1.4 0.9 0.8

Note: Data has been normalized to reflect changes in drug use patterns within each demographic. That is, the 10th grade and 8th grade data are taken from the corresponding 2 years and 4 years prior respectively, for each class.

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