Year	% of adults
2004	53
2005	40.2
2006	45.5
2007	41.6
2008	43.7
2009	45.9
2010	31.9
2011	53.8
2012	57.9
2013	60.8
2014	63
2015	60.7
2016	58.1
2017	66.8
2018	73.7
2019	77