Year Percent 2000 88.66429 2001 89.03424 2002 89.40418 2003 89.77413 2004 90.30368 2005 90.83454 2006 91.3667 2007 91.90018 2008 92.43497 2009 92.97107 2010 93.50847 2011 94.04719 2012 94.58722 2013 95.12855 2014 95.6712 2015 96.04835 2016 96.42551 2017 96.80266 2018 97.16524 2019 97.16524 2020 97.16524 2021 97.16524 2022 97.16524