Article by Christopher Ingraham, Washington Post
The marijuana industry is at a crossroads. Voters have approved recreational marijuana measures in eight states plus the District of Columbia. When these laws become fully implemented in the next few years, more than one in five American adults will live in places where they can walk into a store and legally purchase marijuana.
According to one estimate by ArcView Group, a marijuana industry consulting firm, the legal marijuana market rang up $6.7 billion in sales in 2016.
Legal or not, millions of Americans already use marijuana regularly. According to the most recent National Survey on Drug Use and Health, 8.3 percent of Americans age 12 and over — 22 million people — used marijuana on a monthly basis in 2015. And close to 37 million people used marijuana at least once that year.
The latest data release from that survey breaks those numbers down even further, looking at marijuana consumption at the state level. It finds that there’s considerable variation in the prevalence of marijuana use by state.