Ratios of Past Year 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 -- Past Year (1991 - 2005)
Year Crack Use Rate (%) Ratio vs Marijuana Ratio vs Alcohol
1991 0.9 0.055 0.012
1992 0.9 0.059 0.013
1993 1.1 0.057 0.017
1994 1.4 0.056 0.022
1995 1.8 0.063 0.028
1996 2.1 0.063 0.032
1997 2.2 0.063 0.034
1998 2.5 0.080 0.040
1999 2.4 0.075 0.038
2000 2.2 0.068 0.034
2001 1.8 0.055 0.028
2002 2.3 0.076 0.038
2003 1.6 0.057 0.027
2004 1.7 0.062 0.029
2005 1.7 0.064 0.030
Averages: 1.8 0.063 0.028

Navigate to Other Available Data

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

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