Year % of adults 2000 31.7294239662724 2005 32.2807377898269 2010 33.4807607513858 2011 33.6832001739961 2012 33.9066523732687 2013 34.2580589757007 2014 34.6016447073622 2015 34.9881302647329 2016 35.2942870641561