Year Percent 2000 95.42113 2001 95.66373 2002 95.90632 2003 96.14892 2004 96.39151 2005 96.63411 2006 96.87671 2007 97.1193 2008 97.3619 2009 97.60449 2010 97.84709 2011 98.08968 2012 98.33228 2013 98.57488 2014 98.81747 2015 99.06007 2016 99.15259 2017 99.16423 2018 99.17583 2019 100 2020 100 2021 100 2022 100