Year Percent 2000 99.10979 2001 99.10979 2002 99.10979 2003 99.10979 2004 99.10979 2005 99.1704 2006 99.23101 2007 99.29162 2008 99.35223 2009 99.41284 2010 99.47345 2011 99.53406 2012 99.59467 2013 99.65528 2014 99.71589 2015 99.7765 2016 99.83711 2017 99.89772 2018 99.95833 2019 100 2020 100 2021 100 2022 100