Year % of population 2000 27.1356713454762 2001 26.9304040147061 2002 26.7251366839361 2003 26.519869353166 2004 26.3146020223959 2005 26.1093346916258 2006 25.9040673608557 2007 25.6988000300856 2008 25.4935326993156 2009 25.2882653685456 2010 25.0829980377755 2011 24.8777307070054 2012 24.6724633762353 2013 24.4671960454653 2014 24.2619287146952 2015 24.0566613839251 2016 23.829548045735 2017 23.8300444726616 2018 23.8305396747371 2019 23.8305396747371 2020 23.8305396747371 2021 23.8305396747371 2022 23.8305396747371