Year % of population 2000 82.1 2001 90.4 2002 91 2003 91.6 2004 92.2 2005 92.8 2006 99.1 2007 94.1 2008 94.8 2009 99 2010 99.7 2011 99.3 2012 99.1 2013 99.4 2014 99.5 2015 99.6 2016 99.9 2017 99.9 2018 99.8 2019 99.9 2020 100 2021 100 2022 99.9