Year Percent 2000 77.05968 2001 77.83483 2002 78.61361 2003 79.39599 2004 80.18199 2005 80.9716 2006 81.76482 2007 82.56165 2008 83.3621 2009 84.16616 2010 84.97384 2011 85.78512 2012 86.60002 2013 87.41853 2014 88.24065 2015 89.06639 2016 89.89574 2017 90.7287 2018 91.56527 2019 92.40546 2020 93.24926 2021 94.09667 2022 94.9477