Year	% of adults
2004	0.38
2005	0.4600000000000001
2006	0.64
2007	0.62
2008	1.7799999999999998
2009	2.9200000000000004
2010	3.7800000000000002
2011	5.9399999999999995
2012	6.82
2013	7.7
2014	11.3
2015	12.7
2016	14.024999999999999
2017	14.100000000000001
2018	18.525
2019	21.0375