Year Percent 2000 93.55341 2001 93.55341 2002 93.55341 2003 93.55341 2004 93.55341 2005 93.95313 2006 94.35369 2007 94.75509 2008 95.15734 2009 95.56042 2010 95.96434 2011 96.3691 2012 96.77469 2013 97.18113 2014 97.58841 2015 97.99653 2016 98.40549 2017 98.81528 2018 99.15329 2019 99.38291 2020 99.61253 2021 99.84215 2022 99.84215