Year	% of adults
2004	0
2005	1
2006	5.5
2007	10.9
2008	24.7
2009	30.2
2010	33.3
2011	42
2012	44.9
2013	46.9
2014	46.6
2015	50.1
2016	51.1
2017	54.8
2018	55.7
2019	54.5