Year Percent 2000 94.85 2001 94.85 2002 94.85 2003 95.04949 2004 95.24898 2005 95.44848 2006 95.34884 2007 95.24796 2008 95.14584 2009 95.04246 2010 94.93784 2011 94.83197 2012 94.72485 2013 94.61648 2014 94.50687 2015 94.39601 2016 94.2839 2017 94.17054 2018 94.05593 2019 93.94008 2020 93.6833 2021 93.3759 2022 93.0685