Year % 1998 56.93 1999 56.93 2000 56.93 2001 56.93 2002 56.93 2003 55.93 2004 55.93 2005 55.93 2006 55.93 2007 55.93 2008 54.62 2009 54.62 2010 54.62 2011 54.62 2012 53.23 2013 53.23 2015 53.23 2016 53.23 2019 53.62 2020 53.62 2021 53.62