Year	% of adults
2004	0.3
2005	3.5
2006	3.6
2007	2.7
2008	2.6
2009	2.7
2010	2.5
2011	2.5
2012	2.8
2013	3.1
2014	3
2015	0.5
2016	0.5
2017	0.6
2018	0.6
2019	0