| Marijuana Use in Colorado by Age According to SAMHSA | ||||||
|---|---|---|---|---|---|---|
| Marijuana Use in the Past Year | Marijuana Use in the Past Month | |||||
| Survey Year | 2008-2009 | 2014-2015 | 2015-2016 | 2008-2009 | 2014-2015 | 2015-2016 |
| Ages | ||||||
| All Ages 12 and Older | 15.12% | 23.09% | 23.12% | 9.77% | 16.57% | 15.92% |
| 12-17 | 18.55% | 18.35% | 16.21% | 10.17% | 11.13% | 9.08% |
| 18-25 | 38.59% | 45.24% | 47.54% | 24.18% | 31.75% | 32.20% |
| 26 and Older | 10.79% | 19.91% | 19.85% | 7.31% | 14.65% | 14.00% |
Prevalence and Trends in Marijuana Use Rates in Colorado Before and After Passage of Amendment 64
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