Percentage of 8th-Graders Who Have Used Marijuana:
'Monitoring the Future' Study, 2003

1994 1995 1996 1997 1998 Ever Used 16.7% 19.9% 23.1% 22.6% 22.2% Used in Past Year 13.0 15.8 18.3 17.7 16.9 Used in Past Month 7.8 9.1 11.3 10.2 9.7 Daily Use in Past Month 0.7 0.8 1.5 1.1 1.1

	1999	2000	2001	2002	2003
Ever Used	22.0%	20.3%	20.4%	19.2%	17.5%
Used in Past Year	16.5	15.6	15.4	14.6	12.8
Used in Past Month	9.7	9.1	9.2	8.3	7.5
Daily Use in Past Month	1.4	1.3	1.3	1.2	1.