Year Percent 2000 90.77706 2001 91.01525 2002 91.25343 2003 91.49162 2004 91.7298 2005 91.96799 2006 92.20618 2007 92.44436 2008 92.68255 2009 92.92074 2010 93.15892 2011 93.39711 2012 93.63529 2013 93.87348 2014 94.11167 2015 94.34985 2016 94.58804 2017 94.82622 2018 95.06441 2019 95.3026 2020 95.54078 2021 95.77897 2022 95.77897