Year Percent 2000 85.42638 2001 85.70898 2002 85.99159 2003 86.2742 2004 86.5568 2005 87.04877 2006 87.5421 2007 88.0368 2008 88.53285 2009 89.03027 2010 89.52906 2011 90.0292 2012 90.53071 2013 91.03358 2014 91.53781 2015 92.04341 2016 92.55037 2017 93.05869 2018 93.56837 2019 93.56837 2020 93.56837 2021 93.56837 2022 93.56837