Stats Can is providing a useful hub of cannabis information according to topics including Health, Justice, Economy, and Prices.

See here in both English and French:

English: https://www150.statcan.gc.ca/n1/pub/13-610-x/13-610-x2018001-eng.htm

French: https://www150.statcan.gc.ca/n1/pub/13-610-x/13-610-x2018001-fra.htm