Year % of population 2000 64.4 2001 65.95 2002 67.6 2003 69.4 2004 71 2005 72.9 2006 74.4 2007 76 2008 77.4 2009 79 2010 80.7 2011 82 2012 83.2 2013 84.2 2014 85.3 2015 86.3 2016 87.2 2017 88 2018 88.8 2019 89.3 2020 90 2021 90.4 2022 90.9