Ratios of Lifetime Drug Use vs Marijuana Use Among Those Ages 19 to 28, College Students, and 12th Grade Students
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| Alcohol | Amphetamine | Cocaine |
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| Crack | Ecstasy (MDMA) | Hallucinogen |
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| Heroin | Inhalant | LSD |
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| Other Narcotics | Sedative | Tranquilizer |
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| Ratios of Drug Use vs Alcohol | Lifetime Drug Use Comparisons | General Drug Use Comparisons |
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Source: Monitoring the Future