Year Percent 2000 99.79039 2001 99.79039 2002 99.79039 2003 99.79039 2004 99.79039 2005 99.79039 2006 99.79039 2007 99.79039 2008 99.79039 2009 99.79039 2010 99.45636 2011 99.12233 2012 98.7883 2013 98.45427 2014 98.12025 2015 97.78622 2016 97.45219 2017 97.11816 2018 96.78413 2019 96.45011 2020 96.11608 2021 95.78205 2022 95.78205