Colorado marijuana businesses have sold more than $6 billion worth of weed and related products since a voter-approved measure allowing adults over the age of 21 to consume recreational pot took effect in the state on Jan. 1, 2014. The milestone figure was highlighted Tuesday in a news release from the Colorado Department of Revenue’s Marijuana Enforcement Division, the agency tasked with overseeing both recreational and medical cannabis businesses in the state. RELATED: “Where’s all that marijuana money?” Colorado’s pot dollars help schools, but maybe not as much as you think Colorado crossed the $6 billion sales threshold thanks to a record-setting 2018.