Year % of population 2000 27.9950794480866 2001 29.785757571721536 2002 31.728420803979418 2003 33.68163085138374 2004 35.642547697854575 2005 37.61616465088668 2006 39.603107735665084 2007 41.6232806874731 2008 43.64585973196865 2009 45.67424429526178 2010 47.71399341732485 2011 49.76009114455246 2012 51.80371363632894 2013 53.862018815896846 2014 55.93038891406966 2015 57.98784003343724 2016 60.03383377775792 2017 62.028387411192135 2018 63.98286846390626 2019 65.9167421858353 2020 67.83656310135508 2021 69.67218553400348 2022 71.5551305352678