Year	% of adults
2004	1.146666666666667
2005	1.0093750000000001
2006	0.6343749999999999
2007	0.625
2008	1.084375
2009	1.581818181818182
2010	1.5727272727272728
2011	2.293939393939394
2012	2.602777777777778
2013	2.881081081081081
2014	3.062162162162162
2015	5.463157894736843
2016	3.918421052631578
2017	4.347368421052632
2018	5.013157894736841
2019	6.273684210526316