Two types of cannabis indicators are obtained for: prevalence of use, defined as any use in the past year or past month; and high-risk use, defined as daily or near daily cannabis use (cannabis use on 20 days or more in the last month). For past-year and past-month prevalence of use, age-stratified estimates are provided (15 to 24, 25 to 34, 35 to 44, 45 to 54, 55 to 64 years) by the EMCDDA. For (almost) daily cannabis use, data by age are not available and estimates are only reported for the most recent year (2014 to 2020). In order to construct time trends, we obtained earlier data points from the EMCDDA archives. For Germany, the 2018 estimate was not yet included on the EMCDDA website and was taken from a publication [36].
