Year Percent 2000 93.87314 2001 94.21133 2002 94.54952 2003 94.88771 2004 95.2187 2005 95.54965 2006 95.88055 2007 96.2114 2008 96.54219 2009 96.87294 2010 97.20363 2011 97.53427 2012 97.86486 2013 98.1954 2014 98.52589 2015 98.85633 2016 99.18671 2017 99.51705 2018 99.84733 2019 99.88675 2020 99.88675 2021 99.88675 2022 99.88675