Year % of population 2000 60.63973101709141 2001 61.03366761705188 2002 61.34475622144521 2003 61.62367347493968 2004 61.89871455890691 2005 62.17207901676891 2006 62.44466594377537 2007 62.71070539945323 2008 62.98242401803434 2009 63.24919616615928 2010 63.50725286987462 2011 63.75607163130745 2012 64.0012459400419 2013 64.49936732802615 2014 64.99066381077374 2015 65.46979805774477 2016 65.89858942579022 2017 66.36821483572771 2018 66.80119630492453 2019 67.22564076548298 2020 67.6144439235119 2021 68.17875758712846 2022 68.49431993161527