Year % of adults 2004 82.3 2005 78.7 2006 79.6 2007 74.6 2008 83 2009 94.6 2010 95 2011 81.1 2012 83.7 2013 83.3 2014 32 2015 34.4 2016 18.4 2017 35.4 2018 33.6 2019 53.2