This survey shows the lifetime prevalence of use of marijuana/hashish for grades 8, 10 and 12 combined from 1991 to 2017. Around 35.3% of all respondents in grades 8,10 and 12 in 2001 stated that they used marijuana/hashish within their lifetime.
2017 | 29.3 |
2016 | 28.6 |
2015 | 30 |
2014 | 30.5 |
2013 | 32 |
2012 | 30.7 |
2011 | 31 |
2010 | 30.4 |
2009 | 29 |
2008 | 27.9 |
2007 | 27.9 |
2006 | 28.9 |
2005 | 30.8 |
2004 | 31.4 |
2003 | 32.4 |
2002 | 34 |
2001 | 35.3 |
2000 | 35.3 |
1999 | 36.4 |
1998 | 36.5 |
1997 | 37.8 |
1996 | 35.6 |
1995 | 31.6 |
1994 | 27.8 |
1993 | 23.4 |
1992 | 21.1 |
1991 | 22.7 |