TABLE 1. Number of states and local school districts that conducted a Youth Risk Behavior Survey and number with and without representative data, by year of survey — selected U.S. sites, Youth Risk Behavior Surveys, 1991–2019

TABLE 2. Number of states and local school districts that included at least one of two questions ascertaining sexual minority status and obtained representative data1, by year of survey — selected U.S. sites, Youth Risk Behavior Surveys, 1995–2019
Year Number of states Number of local school districts
Total Representative data No representative data Total Representative data No representative data
1991 26 9 17 11 7 4
1993 40 22 18 14 9 5
1995 39 22 17 17 12 5
1997 38 24 14 17 15 2
1999 41 22 19 17 14 3
2001 37 22 15 19 14 5
2003 43 32 11 22 20 2
2005 44 40 4 23 21 2
2007 44 39 5 22 22 0
2009 47 42 5 23 20 3
2011 47 43 4 22 21 1
2013 47 42 5 22 21 1
2015 47 37 10 21 19 2
2017 46 39 7 21 21 0
2019 46 44 2 28 28 0