Year	% of adults
2004	6.538235294117647
2005	6.600000000000001
2006	7.171428571428573
2007	7.62
2008	8.528571428571428
2009	10.59142857142857
2010	11.162857142857142
2011	12.982857142857146
2012	14.214285714285715
2013	13.847368421052632
2014	15.06578947368421
2015	15.723684210526315
2016	16.210526315789476
2017	21.797368421052635
2018	24.184210526315788
2019	24.855263157894736