Year	% of adults
2004	0.1
2005	0.1
2006	0.1
2007	1.5
2008	2.1
2009	2.3
2010	3.3
2011	4.5
2012	4.9
2013	4.7
2014	4.9
2015	14.3
2016	25.8
2017	30.4
2018	29.9
2019	36.4