Year Percent 2000 69.25986 2001 69.25986 2002 70.70369 2003 72.15077 2004 73.60112 2005 75.05472 2006 76.51157 2007 77.97168 2008 79.43505 2009 80.90168 2010 82.37156 2011 83.8447 2012 85.32109 2013 86.80075 2014 88.28365 2015 89.76982 2016 91.25924 2017 92.75192 2018 94.24786 2019 95.74705 2020 97.2495 2021 97.2495 2022 97.2495