Year	% of adults
2004	0.9902439024390244
2005	1.5760869565217388
2006	1.8478260869565215
2007	2.35
2008	2.7826086956521747
2009	3.217391304347826
2010	3.4456521739130435
2011	3.9347826086956528
2012	4.570212765957447
2013	4.682352941176472
2014	4.545098039215685
2015	5.133333333333334
2016	5.317647058823529
2017	5.7215686274509805
2018	6.5509803921568635
2019	7.723529411764707