1. Cost of Colorado medical-marijuana patient license in 2000: $140 (Source Colorado Board of Health).
2. Cost of Colorado medical-marijuana patient license in 2010: $90 (Source: Colorado Board of Health).
3. Cost of Colorado medical-marijuana patient license as of Nov. 17, 2011: $35 (Source: Colorado Board of Health).
4. Approximate number of Colorado residents currently registered as medical-marijuana patients: 103,000 (Source: Colorado Department of Health).
5. Number of voter signatures Marijuana Policy Project activists need by Jan. 6 to put Colorado cannabis-legalization initiative on the ballot: 145,000 (Source: Marijuana Policy Project).
6. Number of voter signatures gathered, as of November, to put Colorado cannabis-legalization initiative on the ballot: 100,000 (Source: Marijuana Policy Project).
7. Number of people arrested in New York City in 2010 for alleged simple possession of marijuana: 50,383 (Source: New York State Division of Justice Services).
8. Percentage increase of the number of people arrested for simple possession in NYC in 2010 over the year before: 8 (Source: New York State Division of Justice Services).
9. Number of people arrested in NYC for simple possession since Michael Bloomberg was elected mayor in 2002: 350,000 (Source: Drug Policy Alliance).
10. Percentage of people arrested in NYC for possession since 2002 who were Latino or African American: 86 (Source: Drug Policy Alliance).
11. Number of years since NYC supposedly decriminalized simple possession of marijuana: 34 (NYC Office of the City Clerk).
12. Number of states and federal districts that protect patients from arrest for the medicinal use of cannabis: 17 (Source: NORML).
13. Number of states and federal districts that allow patients to grow their own cannabis: 13 (Source: NORML).
14. Number of states in which voters rejected ballot measures that would have allowed the medicinal use of marijuana: 1 (Source: South Dakota Secretary of State).
15. Percentage of South Dakota residents who voted against Measure 13, which would have provided legal protections to medical marijuana patients, in 2010: 63.3 (Source: South Dakota Secretary of State).
16. Number of marijuana arrests in the U.S. since 1970: 21.5 million (Source: FBI Uniform Crime reports).
17. Total population of Australia in 2010: 21.5 million (Source: Wikipedia).
