Year Percent 2000 99.83901 2001 99.83901 2002 99.83901 2003 99.83901 2004 99.83901 2005 99.83901 2006 99.83901 2007 99.83901 2008 99.83901 2009 99.83901 2010 99.84038 2011 99.84176 2012 99.84313 2013 99.8445 2014 99.84587 2015 99.84724 2016 99.84861 2017 99.84998 2018 99.85135 2019 99.85272 2020 99.85409 2021 99.85547 2022 99.85684