In 2017 Canadians spent $5.7 billion on cannabis for medical and non-medical purposes. The data, released this week by Statistics Canada, covers 4.9 million Canadians aged 15 to 64, and works out to approximately $1,200 per cannabis consumer. By comparison, in 2016, Canadians spent $22.3 billion on household purchases of alcohol and $16 billion on household purchases of tobacco. 

The majority of cannabis consumption (90%) was for non-medical purposes. Spending on cannabis has been increasing every year since it was first tracked in 1961. Between 1961 and 2017 spending on cannabis rose by an average of 6% per year. At the same domestic production has grown by an average of over 7% per year. The majority of cannabis consumed in 2017 was produced domestically, a significant change from the 1960s when approximately 40% of cannabis consumed in Canada originated from outside the country. 

For more: 

Statistics Canada, Cannabis Economic Account, 1961 to 2017 

Statistics Canada, Cannabis Stats Hub 

Note: Statistics Canada advises caution when using this data, based on the difficulty of measuring cannabis consumption, which is currently not legal in Canada. From Stats Canada:  The Cannabis Economic Accounts are a set of provisional estimates related to the production, consumption and distribution of cannabis in the Canadian economy. The data are deemed provisional and subject to potentially large revisions because they rely heavily on a number of assumptions, models and sparse data sources related to the production of the mostly illegal cannabis industry. Over the next few months, as the agency develops new data sources and improves its methods, these accounts will be updated to provide a more precise measure of the Canadian cannabis industry and market.