Year % of population 2006 16.1364403410845 2007 58.3529235253235 2008 73.4405123074005 2009 79.0830860787868 2011 76.4787274664734 2012 76.7546404630426 2014 78.058197334247 2015 76.4179773038912 2016 84.33253487291 2017 83.0211919332096 2018 83.6148726327525 2019 77.9928850382629 2020 97.9870790254446