The data displays the 30-day prevalence of use of any illicit drug for grades 8, 10 and 12 combined from 1991 to 2017. Some 19.4% of all respondents in grades 8,10 and 12 in 2001 stated that they used any illicit drug within 30 days.
2017 | 16.1 |
2016 | 15.5 |
2015 | 15.9 |
2014 | 16.5 |
2013 | 17.3 |
2012 | 16.8 |
2011 | 17 |
2010 | 16.7 |
2009 | 15.8 |
2008 | 14.6 |
2007 | 14.8 |
2006 | 14.9 |
2005 | 15.8 |
2004 | 16.2 |
2003 | 17.3 |
2002 | 18.2 |
2001 | 19.4 |
2000 | 19.2 |
1999 | 19.5 |
1998 | 19.5 |
1997 | 20.5 |
1996 | 20.6 |
1995 | 18.6 |
1994 | 16.8 |
1993 | 13.3 |
1992 | 10.5 |
1991 | 10.9 |