Year % of adults 2000 41.9105072565795 2005 37.3624091701511 2010 33.330511235223 2011 32.6347300924635 2012 31.9340828761944 2013 31.25034212533 2014 30.5348157490551 2015 29.8982727998188 2016 29.2539625967983