Year	% of adults
2004	2.3
2005	4.7
2006	10.2
2007	10.8
2008	22.7
2009	22.2
2010	19.2
2011	51.4
2012	58.9
2013	58.3
2014	32.7
2015	40.5
2016	42.2
2017	45
2018	50.3
2019	53.6