Year Percent 2000 99.48463 2001 99.4848 2002 99.48497 2003 99.48512 2004 99.48529 2005 99.48546 2006 99.48562 2007 99.48578 2008 99.48594 2009 99.4861 2010 99.48612 2011 99.48613 2012 99.48614 2013 99.48615 2014 99.48616 2015 99.48616 2016 99.48618 2017 99.48618 2018 99.48619 2019 99.4862 2020 99.4862 2021 99.48621 2022 99.48622