Year Percent 2000 90.60438 2001 91.17409 2002 91.73916 2003 92.29961 2004 92.85558 2005 93.40675 2006 93.9533 2007 94.49512 2008 95.01559 2009 95.4075 2010 95.79532 2011 96.17946 2012 96.55967 2013 96.93611 2014 97.30882 2015 97.67765 2016 98.04275 2017 98.40402 2018 98.76155 2019 99.11535 2020 99.3687 2021 99.54 2022 99.70643