Ratios of Lifetime 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 -- Lifetime (1991 - 2005)
Year Crack Use Rate (%) Ratio vs Marijuana Ratio vs Alcohol
1991 1.3 0.127 0.019
1992 1.6 0.143 0.023
1993 1.7 0.135 0.031
1994 2.4 0.144 0.043
1995 2.7 0.136 0.050
1996 2.9 0.126 0.052
1997 2.7 0.119 0.050
1998 3.2 0.144 0.061
1999 3.1 0.141 0.060
2000 3.1 0.153 0.060
2001 3.0 0.147 0.059
2002 2.5 0.130 0.053
2003 2.5 0.143 0.055
2004 2.4 0.147 0.055
2005 2.4 0.145 0.059
Averages: 2.5 0.138 0.048

Navigate to Other Available Data

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