Year Percent 2000 98.32442 2001 98.33442 2002 98.34443 2003 98.35443 2004 98.36443 2005 98.37443 2006 98.38443 2007 98.39443 2008 98.40443 2009 98.41444 2010 98.42444 2011 98.43444 2012 98.44444 2013 98.45444 2014 98.46444 2015 98.47444 2016 98.48445 2017 98.49445 2018 98.50445 2019 98.51445 2020 98.51445 2021 98.51445 2022 98.51445