Arrests for marijuana account for 48.3% of all drug arrests in the United States. This figure was at 49.8% in 2008, increased yearly to a level of 54.7% in 2011 before dropping to the current level in 2012. The total number of drug arrests rose to over 1.5 million in 1996, rose to about 1.9 million in 2006 before declining in the last several years to its current level of 1,552,432.
In 2012 the NSDUH estimated that there were 31.8 million Americans who used marijuana at least on an annual basis and 18 million who used marijuana monthly. The annual figures include 3.5 million users between the ages of 12 and 17, 10.7 million between the ages of 18 and 25, and 16.1 million age 26 and older.