Year Percent 2000 94.47628 2001 94.47628 2002 94.47628 2003 94.64688 2004 94.81747 2005 94.98807 2006 95.15867 2007 95.32926 2008 95.49986 2009 95.67046 2010 95.84105 2011 96.01165 2012 96.18224 2013 96.35284 2014 96.52344 2015 96.69403 2016 96.86463 2017 97.03523 2018 97.20582 2019 97.20582 2020 97.20582 2021 97.20582 2022 97.20582