Year Percent 2000 99.55706 2001 99.58277 2002 99.60848 2003 99.6342 2004 99.65991 2005 99.68562 2006 99.71133 2007 99.73705 2008 99.76276 2009 99.78847 2010 99.81418 2011 99.8399 2012 99.86561 2013 99.89132 2014 99.91703 2015 99.91703 2016 99.91703 2017 99.91703 2018 99.91703 2019 99.91703 2020 99.91703 2021 99.91703 2022 99.91703