Year	% of adults
2004	0.7470588235294119
2005	1.4405405405405403
2006	1.578947368421053
2007	1.668421052631579
2008	1.784210526315789
2009	2.073684210526316
2010	2.010526315789474
2011	2.047368421052632
2012	2.576315789473684
2013	2.878947368421053
2014	3.1368421052631574
2015	3.2128205128205125
2016	3.469230769230769
2017	3.7717948717948717
2018	4.328205128205127
2019	5.376923076923077