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Monitoring the Future
Trends in Any Illicit Use (except Marijuana)
HS Senior Class Cohorts of 1995 through 2008



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Any Illicit Use Other Than Marijuana Within Cohort -- High School Senior Classes of 1995 through 2008
Lifetime Past Year Past Month

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

Trends in Use of Any Illicit Drug Except Marijuana Within HS Senior Cohorts -- Classes of 1995 through 2008
  Lifetime Past Year Past Month
Class of: 8th Grade 10th Grade 12th Grade 8th Grade 10th Grade 12th Grade 8th Grade 10th Grade 12th Grade
1995 14.3 20.9 28.1 11.3 24.7 39.0 5.7 14.0 23.8
1996 15.6 21.7 28.5 12.9 30.0 40.2 6.8 18.5 24.6
1997 16.8 24.3 30.0 15.1 33.3 42.4 8.4 20.2 26.2
1998 17.5 25.5 29.4 18.5 37.5 41.4 10.9 23.2 25.6
1999 18.8 25.0 29.4 21.4 38.5 42.1 12.4 23.0 25.9
2000 19.2 23.6 29.0 23.6 35.0 40.9 14.6 21.5 24.9
2001 17.7 24.0 30.7 22.1 35.9 41.4 12.9 22.1 25.7
2002 16.9 23.1 29.5 21.0 36.4 41.0 12.1 22.5 25.4
2003 16.3 23.6 27.7 20.5 37.2 39.3 12.2 22.7 24.1
2004 15.8 22.1 28.7 19.5 34.8 38.8 11.9 20.8 23.4
2005 17.0 19.7 27.4 19.5 32.0 38.4 11.7 19.5 23.1
2006 13.7 18.8 26.9 17.7 31.1 36.5 10.4 18.3 21.5
2007 13.6 18.0 25.5 16.1 29.8 35.9 9.7 17.3 21.9
2008 12.2 17.5 24.9 15.2 28.7 36.6 8.4 16.8 22.3

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


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