Year % 2001 96.6 2002 96.3 2004 96.3 2005 96.3 2006 96.3 2007 96.02 2008 96.02 2009 96.02 2010 96.02 2011 96.02 2012 94.29 2013 94.29 2014 94.29 2015 94.29 2016 94.29 2017 94.42 2018 94.42 2019 94.4 2020 94.4 2021 94.4