Year Percent 2000 98.73152 2001 98.73152 2002 98.73973 2003 98.74794 2004 98.75615 2005 98.76436 2006 98.77257 2007 98.78078 2008 98.78899 2009 98.7972 2010 98.80541 2011 98.81362 2012 98.82183 2013 98.83004 2014 98.83825 2015 98.84646 2016 98.85467 2017 98.86288 2018 98.87109 2019 98.8793 2020 98.88751 2021 98.89572 2022 98.90393