Year	% of adults
2004	16.149999999999995
2005	15.705521472392638
2006	16.740718562874246
2007	18.93
2008	19.774269005847955
2009	21.272093023255824
2010	22.697093023255817
2011	25.004022988505746
2012	25.096067415730346
2013	27.430687830687834
2014	28.239153439153448
2015	29.37842105263158
2016	30.070000000000007
2017	30.710526315789483
2018	31.981151832460732
2019	33.31989528795811