Year % 1996 52.07 1999 52.12 2000 52.12 2001 52.12 2002 52.12 2003 52.12 2004 52.12 2005 52.12 2006 52.12 2007 52.12 2008 52.12 2009 52.12 2010 52.07 2011 52.07 2012 52.08 2013 52.12 2014 52.08 2015 52.08 2016 52.08 2017 52.08 2018 52.08 2019 52.08 2020 52.08 2021 52.08