1. Number of Colorado cities that have banned medical marijuana dispensaries: 77 (Source: Denver Post).
2. Number of Colorado counties that banned medical marijuana dispensaries: 30 (Source: Denver Post).
3. Percentage of Coloradans surveyed in August who support marijuana legalization: 51 (Source: Public Policy Polling survey).
4. Percentage of Coloradans surveyed in August who oppose marijuana legalization: 38 (Source: Public Policy Polling survey).
5. Approximate number of medical marijuana dispensaries operating in Colorado: 667 (Source: Colorado Department of Revenue).
6. Percentage of decrease in alcohol-related car crashes among men in states with medical marijuana programs: 13 (Source: University of Colorado-Denver study).
7. Percentage of decrease in alcohol-related car crashes among women in states with medical marijuana programs: 9 (Source: University of Colorado-Denver study).
8. Number of times a drunk driver is more likely to cause a fatal traffic accident than a medicated driver: 10 (Source: Slate).
9. Number of states with medical marijuana laws pending in their legislatures: 6 (Source: Institute for the Study of Labor).
10. Number of cannabis plantations of at least 2,000 acres existing in the U.S. in 1850: 8,000 (Source: 1850 U.S. Census).
11. Number of years that cannabis was listed in the United States Pharmacopoeia, the official list of recognized medicinal drugs: 92 (Source: Hamline Journal of Public Law and Policy).
12. Percentage of Americans arrested in 2010 for marijuana possession under the age of 19: 30 (Source: NORML).
13. Estimated cost to U.S. taxpayers of the War on Drugs since it was declared by President Richard Nixon in 1971: $1 trillion-plus (Source: Associated Press).
14. Estimated number of cannabis users worldwide in 1998: 147.4 million (Source: Global Commission on Drug Policy report).
15. Estimated number of cannabis users worldwide in 2008: 160 million (Source: Global Commission on Drug Policy report).
