How Big is the U.S. Market for Illegal Drugs? RAND Corporation. Beau Kilmer et al. March 10, 2014.
Using data from 2000 to 2010, the researchers estimated the number of users, expenditures, and consumption for four illicit drugs: cocaine, including crack, heroin, marijuana, and methamphetamine. [Note: contains copyrighted material].
[PDF format, 5 pages, 365.8 MB].