Year Percent 2000 97.01463 2001 97.06756 2002 97.12049 2003 97.17343 2004 97.22827 2005 97.28312 2006 97.33798 2007 97.39283 2008 97.44769 2009 97.50254 2010 97.55741 2011 97.61227 2012 97.66713 2013 97.722 2014 97.77687 2015 97.82981 2016 97.88276 2017 97.9357 2018 97.98865 2019 97.99485 2020 97.99485 2021 97.99485 2022 97.99485