Year Percent 2000 77.21255 2001 78.03732 2002 78.8362 2003 79.63455 2004 80.43236 2005 81.22962 2006 82.02634 2007 82.82252 2008 83.61816 2009 84.41326 2010 85.20782 2011 86.00184 2012 86.79531 2013 87.58824 2014 88.38064 2015 89.17249 2016 89.9638 2017 90.75456 2018 91.54479 2019 92.33448 2020 93.12362 2021 93.91222 2022 94.70028