Year % of population 2000 54.0308385014475 2001 54.0132266126421 2002 53.9948514125657 2003 53.9757201144686 2004 54.7231046427893 2005 55.4731201436213 2006 56.2257569455607 2007 56.974348623783 2008 57.7220636028874 2009 58.4732458151999 2010 59.2275882435158 2011 59.9853928702246 2012 60.7417589685191 2013 61.5019516846728 2014 62.2657133797707 2015 63.0331802497845 2016 63.8044686278027 2017 64.5822769250156 2018 65.4068268892447 2019 66.2777767570244 2020 67.1545533532315 2021 67.1621267559778 2022 67.1721881963149