Year Percent 2000 96.25556 2001 96.35999 2002 96.46407 2003 96.56778 2004 96.67113 2005 96.77412 2006 96.87676 2007 96.97903 2008 97.08093 2009 97.18248 2010 97.28367 2011 97.3845 2012 97.35945 2013 97.425 2014 97.33333 2015 97.33333 2016 97.33333 2017 97.33333 2018 97.33333 2019 97.33333 2020 97.33333 2021 97.33333 2022 97.33333