Year	% of adults
2000	25.6396084365984
2005	23.3465972115638
2010	21.3163121512601
2011	20.9299540564354
2012	20.6199742327627
2013	20.2305250757871
2014	19.9144409677608
2015	19.594052306111
2016	19.2744818950871