Ratios of Crack Use to Marijuana Use by Those Ages 19 to 28


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Source: Monitoring the Future

Ratios of Crack Use vs Marijuana Use Among Those Ages 19 to 28 (1986 - 2004)
Year Lifetime Past Year Past Month
1986 -- 0.09 --
1987 0.10 0.09 0.048
1988 0.11 0.10 0.067
1989 0.10 0.09 0.045
1990 0.08 0.06 0.029
1991 0.08 0.05 0.030
1992 0.09 0.06 0.030
1993 0.08 0.05 0.030
1994 0.08 0.04 0.021
1995 0.07 0.04 0.014
1996 0.07 0.04 0.020
1997 0.07 0.04 0.020
1998 0.07 0.04 0.020
1999 0.08 0.05 0.026
2000 0.08 0.04 0.025
2001 0.08 0.04 0.024
2002 0.08 0.03 0.018
2003 0.08 0.03 0.017
2004 0.07 0.04 0.018
Averages: 0.08 0.05 0.028

Navigate to Other Available Data

Age 19 to 28 Crack Use Overview Crack vs Alcohol Use Ratios Comparison Use Ratios vs Both Alcohol & Marijuana
8th Grade Use Ratios vs Marijuana 10th Grade Use Ratios vs Marijuana 12th Grade Use Ratios vs Marijuana
College Use Ratios vs Marijuana Use Across 8th, 10th and 12th Grades Use Across 12th Grade, College Students, and Young Adults

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