Figure 4:

Age-adjusted trends in the prevalence of past-year cannabis consumption by level of education and sex, Canada 2004–2017. Estimates are shown with 95% confidence intervals. Lower education includes less than high school and completed high school; higher education includes completed college and completed university. Data sources: Canadian Tobacco Use Monitoring Survey (2004–2012), Canadian Alcohol and Drugs Survey (2013–2017) and Canadian Alcohol and Drug Use Monitoring Survey (2008–2012).