Year	% of adults
2004	0
2005	0
2006	0
2007	0
2008	2.2
2009	2.1
2010	3.3
2011	3.6
2012	15.7
2013	16.5
2014	17.8
2015	19.4
2016	27.8
2017	40.1
2018	42.7
2019	47.8