Year Percent 2001 95.73892 2002 95.73892 2003 95.73892 2004 95.73892 2005 95.73892 2006 95.56579 2007 95.27317 2008 94.598 2009 93.92465 2010 93.25314 2011 92.58344 2012 91.91558 2013 91.24954 2014 90.58533 2015 89.92294 2016 89.26238 2017 88.60365 2018 87.94674 2019 87.29166 2020 87.12971 2021 86.96776 2022 86.8058