Year	% of adults
2004	21.73095238095238
2005	23.00232558139535
2006	25.377777777777776
2007	29.279999999999998
2008	31.328260869565216
2009	32.946808510638306
2010	36.03829787234043
2011	43.202127659574465
2012	42.416666666666664
2013	45.52244897959184
2014	45.80612244897959
2015	48.80000000000001
2016	50.37346938775509
2017	49.85510204081632
2018	50.296000000000014
2019	49.647999999999996