Year % of population 2000 53.19732006732158 2001 53.63693433603728 2002 54.38128834090717 2003 55.12154774943239 2004 55.89591178244874 2005 56.69843362388848 2006 57.50108873584136 2007 57.9886203400521 2008 58.31154950335627 2009 58.96084416620399 2010 59.60961779598555 2011 60.30359703525609 2012 61.1041745398763 2013 61.9429937763791 2014 62.78125035570574 2015 63.63096730087985 2016 64.46452290817206 2017 65.28628952012038 2018 66.09108439310172 2019 66.87856393479493 2020 67.62801387703443 2021 68.27969797593641 2022 68.8059710676649