Ratios of Lifetime Crack Use to Marijuana and Alcohol Use by 10th Grade Students

Source: Monitoring the Future

Ratios of Crack Use vs Marijuana Use and Alcohol Use Among 10th Grade Students -- Lifetime (1991 - 2005)
Year Crack Use Rate (%) Ratio vs Marijuana Ratio vs Alcohol
1991 1.7 0.073 0.020
1992 1.5 0.070 0.018
1993 1.8 0.074 0.025
1994 2.1 0.069 0.030
1995 2.8 0.082 0.040
1996 3.3 0.083 0.046
1997 3.6 0.085 0.050
1998 3.9 0.098 0.056
1999 4.0 0.098 0.057
2000 3.7 0.092 0.052
2001 3.1 0.077 0.044
2002 3.6 0.093 0.054
2003 2.7 0.074 0.041
2004 2.6 0.074 0.040
2005 2.5 0.073 0.040
Averages: 2.9 0.082 0.041

Navigate to Other Available Data

10th Grade Crack Use Overview Past Year Ratios of Use Past Month Ratios of Use
Use Ratios vs Alcohol Use Ratios vs Marijuana 8th Grade Use Ratios
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