Year Percent 2000 99.69966 2001 99.69966 2002 99.69966 2003 99.69966 2004 99.69966 2005 99.69966 2006 99.69966 2007 99.69966 2008 99.69966 2009 99.69966 2010 99.71944 2011 99.73922 2012 99.759 2013 99.77878 2014 99.79856 2015 99.81834 2016 99.83812 2017 99.8579 2018 99.87768 2019 99.89746 2020 99.91724 2021 99.93702 2022 99.9568