of Colorado's adult population, by the end of 2010 (refer to Supplemental Figure 21; CPDHE website; Census, 2010). Colorado's medical marijuana industry quickly matured, accumulating retail sales revenue of more than $219,000,000 between July, 2011 and June, 2012 (Colorado Department of Revenue, 2014). Instead of focusing on the point of legalization (pre-post passage of Amendment 20) when the medical marijuana industry in Colorado was relatively quiescent, here we focus on the potential impact of the rapid growth of the commercial medical marijuana industry in Colorado beginning in 2009.
