Legal U.S. pot sales soared to $5.4 billion for 2015, up 17.4 percent from $4.6 billion in 2014, according to data released Monday by the ArcView Group, which tracks the cannabis markets.
The figures include medical and adult consumer sales. However, the annual gain was largely fueled by the explosive growth in consumer sales, as some states have approved adult recreational marijuana use. Adult use sales grew to $998 million from $351 million in 2014, according to the research. And voters in more states, including California, are likely to take up the issue in 2016.