Ratios of Crack Use to Marijuana Use by 8th Grade Students


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Source: Monitoring the Future

Ratios of Crack Use vs Marijuana Use Among 8th Grade Students (1991 - 2005)
Year Lifetime Past Year Past Month
1991 0.127 0.113 0.094
1992 0.143 0.125 0.135
1993 0.135 0.109 0.078
1994 0.144 0.100 0.090
1995 0.136 0.101 0.077
1996 0.126 0.098 0.071
1997 0.119 0.096 0.069
1998 0.144 0.124 0.093
1999 0.141 0.109 0.082
2000 0.153 0.115 0.088
2001 0.147 0.110 0.087
2002 0.130 0.110 0.096
2003 0.143 0.125 0.093
2004 0.147 0.110 0.094
2005 0.145 0.115 0.091
Averages: 0.138 0.110 0.089

Navigate to Other Available Data

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

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