Year Percent 2000 94.17494 2001 94.09839 2002 94.02185 2003 93.9453 2004 93.86875 2005 93.79221 2006 94.07578 2007 94.35876 2008 94.64116 2009 94.92297 2010 95.20419 2011 95.48482 2012 95.76486 2013 96.04431 2014 96.32318 2015 96.60146 2016 96.87915 2017 97.15625 2018 97.43276 2019 97.70869 2020 97.62802 2021 97.54736 2022 97.54736