Year % of population 2000 70.3 2001 63.6 2002 80.7 2003 75 2004 76.5 2005 78.1 2006 82.1 2007 80 2008 82.9 2009 87.1 2010 85.3 2011 87.8 2012 87 2013 90.2 2014 92.7 2015 94.3 2016 97.5 2017 97.5 2018 99.6 2019 99.8 2020 100 2021 100 2022 100