Year % of population 2000 89 2001 89.3 2002 89.7 2003 90 2004 90.4 2005 90.6 2006 91 2007 91.4 2008 91.8 2009 92.1 2010 92.4 2011 92.8 2012 93.2 2013 93.5 2014 93.9 2015 94.2 2016 94.6 2017 95 2018 95.3 2019 95.6 2020 95.9 2021 96.2 2022 96.4