Year Percent 2000 97.62576 2001 97.80508 2002 97.98439 2003 98.16371 2004 98.34303 2005 98.52234 2006 98.70166 2007 98.88098 2008 99.06029 2009 99.23961 2010 99.41892 2011 99.59824 2012 99.77756 2013 99.95687 2014 100 2015 100 2016 100 2017 100 2018 100 2019 100 2020 100 2021 100 2022 100