Year % 1995 55.09 1998 55.06 1999 55.01 2000 55.01 2001 55.01 2002 54.79 2003 54.79 2004 54.79 2005 54.79 2006 54.79 2007 54.79 2008 54.91 2009 54.91 2010 54.91 2011 54.91 2012 54.89 2013 54.89 2014 54.89 2015 54.89 2016 54.89 2018 54.82 2019 54.82 2020 54.82 2021 54.82