Year	% of adults
2004	11.1
2005	17.7
2006	37.5
2007	38.7
2008	39
2009	46.9
2010	61.5
2011	82.4
2012	84
2013	84.4
2014	82.5
2015	81.2
2016	79.6
2017	78.3
2018	72.5
2019	69.9