Monitoring the Future -- Trends in Lifetime Crack Use
vs Alcohol Use by Young Adults (1986 - 2008)

Ratios of Crack Use to Alcohol Use Among Young Adults -- Lifetime Use (1986 - 2008)
Year	Ages 19 Use to 28	College Students	12th Grade Students
1986	--	--	--
1987	0.066	0.035	0.059
1988	0.073	0.036	0.052
1989	0.065	0.026	0.052
1990	0.054	0.015	0.039
1991	0.051	0.016	0.035
1992	0.055	0.019	0.030
1993	0.047	0.015	0.033
1994	0.048	0.011	0.037
1995	0.041	0.020	0.037
1996	0.043	0.014	0.042
1997	0.040	0.016	0.048
1998	0.042	0.025	0.054
1999	0.048	0.027	0.058
2000	0.051	0.029	0.049
2001	0.052	0.023	0.046
2002	0.048	0.022	0.048
2003	0.053	0.036	0.047
2004	0.047	0.024	0.051
2005	0.052	0.023	0.046
2006	0.048	0.022	0.048
2007	0.053	0.036	0.047
2008	0.047	0.024	0.051

Other Available Trend and Comparison Data
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