Year % of adults 2004 43.7 2005 43.7 2006 43.7 2007 44.1 2008 46.8 2009 46 2010 45 2011 57.9 2012 53.5 2013 70.9 2014 73 2015 52.9 2016 58.3 2017 71 2018 73.3 2019 79.7