Year	% of adults
2004	0.1
2005	2.3
2006	1.4
2007	2.4
2008	2.4
2009	3
2010	2.9
2011	8.2
2012	8.3
2013	9
2014	9.4
2015	10.9
2016	12.2
2017	11.9
2018	12.4
2019	13.2