Year % of adults 2000 29.0806491424604 2005 27.9850026219369 2010 27.0009422658182 2011 26.817327134253 2012 26.6344624231304 2013 26.4142615811561 2014 26.3540095132892 2015 26.144262264866 2016 26.0177585774937