Year	% of adults
2005	0.2
2006	0.2
2007	0.2
2008	0.2
2009	0.2
2010	0.2
2011	0.2
2012	0.2
2013	0.3
2014	0.3
2015	0.4
2016	0.4
2017	0.4
2018	0.4
2019	0.4