Year	% of adults
2004	17.7
2005	17.7
2006	17.7
2007	17.7
2008	17.7
2009	17.7
2010	17.7
2011	17.7
2012	17.7
2013	17.5
2014	17.3
2015	15.6
2016	22.6
2017	18.8
2018	23.6
2019	22.4