Binge alcohol use in the past month among individuals ages 12 to 20, by substate region in the United States. Note: For substate region definitions, see the 2012–2014 NSDUH, substate region definitions at www.samhsa.gov/data. Source: SAMHSA, Center for Behavioral Health Statistics and Quality, 2012, 2013, and 2014 NSDUH.