Data from the Canadian Addiction Survey (CAS) and Canadian Alcohol and Drug Use Monitoring Survey (CADUMS).
Source
Health Canada, "Canadian Alcohol and Drug Use Monitoring Survey (CADUMS) Summary of Results for 2012" (Ottawa, Ontario: Controlled Substances and Tobacco Directorate, Health Canada, June 2013), pp. 1-2.
http://www.hc-sc.gc.ca/hc-ps/…
