Year % of population 2000 87.5353630534014 2001 87.5095692733427 2002 87.9289868931011 2003 88.2626549603957 2004 88.5448158476272 2005 88.8241774974135 2006 89.0755870920017 2007 89.319748469334 2008 89.5634889034446 2009 89.8144012031932 2010 90.0717571918189 2011 90.3274278884159 2012 90.5812569807795 2013 90.833237369541 2014 91.0832380907094 2015 91.5193356535178 2016 91.9567749615112 2017 92.3953593428751 2018 92.4034575429562 2019 92.4131252688765 2020 92.4243663242689 2021 92.4371811227334