Year % of population 1992 88.59362802833681 1993 89.20631212159907 1994 90.12126605408017 1995 88.49020795836002 1996 89.45830681625165 1997 89.9212270925716 1998 90.54901501829805 1999 91.16637632684021 2000 91.53290551262903 2001 92.17243358934452 2002 92.52235308940354 2003 92.59112754383528 2004 93.08468469504147 2005 93.39571390158544 2006 94.15291962799051 2007 94.37738457739172 2008 95.14085062621619 2009 95.34633005232459 2010 95.80473309093065 2011 96.11946821197154 2012 96.51173782047472 2013 96.81279672495612 2014 97.0063562569368 2015 97.23705144459608 2016 97.43199200199672 2017 97.66674836871707 2018 97.71195436423167 2019 97.95594172657414 2020 98.10927883283578 2021 98.23249384664152 2022 98.5451250779113