Year Percent 2000 84.63923 2001 85.06392 2002 85.48361 2003 85.9049 2004 86.32777 2005 86.77068 2006 87.23198 2007 87.69205 2008 88.15087 2009 88.64642 2010 89.1284 2011 89.62512 2012 90.14628 2013 90.6659 2014 91.18417 2015 91.70107 2016 92.21838 2017 92.73568 2018 93.25247 2019 93.76833 2020 94.28306 2021 94.79596 2022 95.30674