Ratios of Past Year Crack Use to Marijuana and Alcohol Use by 8th Grade Students

Source: Monitoring the Future

Ratios of Crack Use vs Marijuana Use and Alcohol Use Among 8th Grade Students -- Past Year (1991 - 2005)
Year Crack Use Rate (%) Ratio vs Marijuana Ratio vs Alcohol
1991 0.7 0.113 0.013
1992 0.9 0.125 0.017
1993 1.0 0.109 0.022
1994 1.3 0.100 0.028
1995 1.6 0.101 0.035
1996 1.8 0.098 0.039
1997 1.7 0.096 0.037
1998 2.1 0.124 0.048
1999 1.8 0.109 0.041
2000 1.8 0.115 0.042
2001 1.7 0.110 0.041
2002 1.6 0.110 0.041
2003 1.6 0.125 0.043
2004 1.3 0.110 0.035
2005 1.4 0.115 0.041
Averages: 1.5 0.110 0.034

Navigate to Other Available Data

8th Grade Crack Use Overview Lifetime Ratios of Use Past Month Ratios of Use
Use Ratios vs Alcohol Use Ratios vs Marijuana 10th Grade Use Ratios
12th Grade Use Ratios College Use Ratios Age 19 to 28 Use Ratios

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