Year Percent 2000 94.56058 2001 94.66595 2002 94.79654 2003 94.95608 2004 95.11408 2005 95.27055 2006 95.42559 2007 95.57919 2008 95.73127 2009 95.59654 2010 95.16723 2011 94.74182 2012 94.32045 2013 93.90296 2014 93.48961 2015 93.48324 2016 93.72272 2017 93.96129 2018 94.19911 2019 94.43603 2020 94.6721 2021 94.82522 2022 94.97754