Ratios of Lifetime Crack Use vs Marijuana Use Among 8th, 10th and 12th Grade Students

Source: Monitoring the Future

Ratios of Crack to Marijuana Use -- Lifetime Use (1991 - 2005)
Year 12th Grade 10th Grade 8th Grade
1991 0.084 0.073 0.127
1992 0.080 0.070 0.143
1993 0.074 0.074 0.135
1994 0.079 0.069 0.144
1995 0.072 0.082 0.136
1996 0.073 0.083 0.126
1997 0.079 0.085 0.119
1998 0.090 0.098 0.144
1999 0.093 0.098 0.141
2000 0.080 0.092 0.153
2001 0.076 0.077 0.147
2002 0.079 0.093 0.130
2003 0.078 0.074 0.143
2004 0.085 0.074 0.147
2005 0.078 0.073 0.145
Averages: 0.080 0.082 0.138

Navigate to Other Available Data

Past Year vs Marijuana Past Month vs Marijuana New Use vs Marijuana
Use Ratios Among Age 19 to 28 Use Ratios Among College Students Use Ratios Among 12th Grade Students
Other Drugs vs Marijuana Use Ratios Crack vs Alcohol Use Ratios Youth Drug Use Overview

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