Year	% of adults
2004	0.4
2005	0.4
2006	0.4
2007	0.4
2008	0.4
2009	0.4
2010	0.4
2011	0.4
2012	0.4
2013	0.4
2014	0.6
2015	0.6
2016	0.6
2017	0.7
2018	0.8
2019	0