Year	% of adults
2004	9.6
2005	10.3
2006	11.5
2007	12.1
2008	11.9
2009	11.6
2010	11.3
2011	11.8
2012	14.8
2013	14.1
2014	15.1
2015	15
2016	15.4
2017	16.1
2018	17.6
2019	26.1