Year Percent 2000 95.44966 2001 95.44966 2002 95.31554 2003 95.18138 2004 95.04718 2005 94.91295 2006 94.77868 2007 94.64437 2008 94.51003 2009 94.37565 2010 94.24124 2011 94.10679 2012 93.97231 2013 93.83779 2014 93.70323 2015 93.56864 2016 93.43401 2017 93.29934 2018 93.16464 2019 93.0299 2020 92.89513 2021 92.76032 2022 92.76032