Year % of population 2000 66.5397827954019 2001 66.55705363725 2002 66.6277376299086 2003 66.7362269765906 2004 69.348448423106 2005 71.957494683954 2006 74.535211797364 2007 77.0916504416735 2008 79.6272761391549 2009 82.141580209515 2010 84.6185048824194 2011 87.0901019247029 2012 89.5565480152031 2013 89.5571972468318 2014 89.0135977787277 2015 88.8409830580509 2016 88.6682642980545 2017 88.4954524104413 2018 88.3225822149896 2019 88.1498640335816 2020 87.9774978969878 2021 87.7693971707308 2022 87.6207250140124