Year	% of adults
2004	18.295833333333334
2005	20.166666666666668
2006	19.796000000000003
2007	20.732
2008	21.836000000000002
2009	25.328000000000003
2010	28.04
2011	29.039999999999996
2012	29.211538461538456
2013	30.441379310344825
2014	31.22413793103448
2015	32.54827586206897
2016	30.862068965517242
2017	32.362068965517246
2018	33.93103448275862
2019	34.289655172413795