Year % of population 1990 87.475116 1991 90.6065444946289 1992 88.803833 1993 89.999927 1994 91.8837280273438 1995 91.728598 1996 92.867095 1997 93.354139 1998 94.193812 1999 94.76296 2000 94.4 2001 96 2002 96.7 2003 97 2004 96.8 2005 97.1 2006 97.6 2007 98.1 2008 98.5 2009 98.9 2010 98.6 2011 99.3 2012 99.5 2013 99.6 2014 99.7 2015 99.7 2016 99.7 2017 99.8 2018 99.7 2019 99.8 2020 99.7 2021 99.5 2022 100