Year Percent 2000 95.30274 2001 95.68288 2002 96.06301 2003 96.44315 2004 96.82329 2005 97.20342 2006 97.58356 2007 97.9637 2008 98.34384 2009 98.72397 2010 99.10411 2011 99.48425 2012 99.86438 2013 99.86438 2014 99.86438 2015 99.86438 2016 99.86438 2017 99.86438 2018 99.86438 2019 99.86438 2020 99.86438 2021 99.86438 2022 99.86438