Year Percent 2000 99.23454 2001 99.23454 2002 99.23631 2003 99.23809 2004 99.23987 2005 99.24165 2006 99.24342 2007 99.2452 2008 99.24698 2009 99.24875 2010 99.25053 2011 99.25231 2012 99.25409 2013 99.25586 2014 99.25764 2015 99.25942 2016 99.26119 2017 99.26297 2018 99.26297 2019 99.26297 2020 99.26297 2021 99.26297 2022 99.26297