Year Percent 2000 76.92373 2001 76.92373 2002 76.92373 2003 78.23291 2004 79.54209 2005 80.85126 2006 82.16044 2007 83.46962 2008 84.7788 2009 86.08798 2010 87.39716 2011 88.70633 2012 90.01551 2013 91.32469 2014 92.63387 2015 93.94305 2016 95.25223 2017 96.5614 2018 97.87058 2019 99.06738 2020 99.2 2021 99.2 2022 99.2