Year Percent 2000 70.27698 2001 71.20586 2002 72.08154 2003 72.92341 2004 73.76065 2005 74.86403 2006 75.96749 2007 77.07143 2008 78.17546 2009 79.2796 2010 80.38401 2011 81.48383 2012 82.5813 2013 83.68007 2014 84.78001 2015 85.88137 2016 86.98391 2017 88.08773 2018 89.13064 2019 90.00324 2020 90.87413 2021 91.74269 2022 92.2725