Year	% of adults
2005	2.4
2006	2.4
2007	1.9
2008	2.7
2009	3
2010	2.5
2011	2.9
2012	3.9
2013	4.7
2014	5.1
2015	7.5
2016	9
2017	6.3
2018	8.7
2019	10.8