Year % of population 1992 87.85974494917153 1993 88.52435811658484 1994 89.52393042476915 1995 87.71848132125929 1996 88.8187956124415 1997 89.28124537653973 1998 89.94818754078085 1999 90.61429870879748 2000 91.11364680221504 2001 91.74156107422701 2002 92.0938213978852 2003 92.31877435701475 2004 92.7426462971851 2005 93.09189730922945 2006 93.81366695057659 2007 94.11298633415606 2008 94.92948335467078 2009 95.10571386887794 2010 95.59199069307768 2011 95.94498897005221 2012 96.32005964317811 2013 96.65798480663375 2014 96.81254074905857 2015 97.07116645571337 2016 97.30297971686116 2017 97.57174750905321 2018 97.5791568486266 2019 97.85321104374754 2020 98.00600175257213 2021 98.13654481924911 2022 98.47624554319088