"Provincial prevalence of past-year cannabis use ranged from 8.5% in New Brunswick to 13.8% in British Columbia. There were no year-to-year changes in provincial rates of cannabis use. Each province’s past-year cannabis prevalence was compared with the average prevalence for the nine remaining provinces. Of these, only British Columbia shows higher than average prevalence."
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), p. 3.