Year	% of adults
2004	19.2
2005	19.2
2006	11.9
2007	13.3
2008	33.9
2009	29.7
2010	28.5
2011	35.9
2012	44.1
2013	59.7
2014	38.1
2015	23.2
2016	25.2
2017	26.4
2018	26.3
2019	26.8