Year % of adults 2000 7.80856025825428 2005 6.12397348572504 2010 4.93290401143416 2011 4.71515006098597 2012 4.55783617909825 2013 4.36899630257275 2014 4.19653790705417 2015 4.0406887849204 2016 3.89655027362521