Chan GCK, et al. - Researchers sought to determine the proportion of cannabis consumed in Australia by daily cannabis users. They used data from four National Drug Strategy Household Surveys (n = 92,243; 55% females) in 2007, 2010, 2013 and 2016 to perform this work with Monte Carlo simulation design. They determined the frequency of cannabis use (daily/weekly/about once a month/every few months/once or twice a year) and multiplied the weighted estimated prevalence of users in each of these frequency levels by population size to ascertain the total number of users. The analysis revealed an increase in the prevalence of past-year cannabis use from 8.9% in 2007 to 10.5% in 2016, 16% of whom were daily users. Daily users accounted for between 81.6% and 85.7% of all cannabis consumed between 2007 and 2016. An additional 12.1%–15.9% was reported in weekly users. Findings thereby suggest that only one in six Australian cannabis users were daily users between 2007 and 2016, however, they accounted for more than 80% of the estimated cannabis consumed in Australia.