Year % of population 2000 86 2001 89.9 2002 87.7 2003 88.5 2004 89.3 2005 90.1 2006 90.9 2007 91.8 2008 92.7 2009 93.5 2010 94.2 2011 95.4 2012 95.3 2013 97.2 2014 98.1 2015 99 2016 99.8 2017 99.9 2018 100 2019 100 2020 100 2021 100 2022 100