Year Percent 2000 88.22724 2001 88.56914 2002 88.91159 2003 89.25456 2004 89.59807 2005 89.94212 2006 90.2867 2007 90.63182 2008 90.97747 2009 91.32365 2010 91.67037 2011 92.01763 2012 92.36541 2013 92.71374 2014 93.0626 2015 93.41199 2016 93.76192 2017 94.11238 2018 94.46338 2019 94.81491 2020 95.16698 2021 95.51958 2022 95.87272