Year % 1996 46.38 1997 46.38 1998 46.38 2000 46.52 2001 46.52 2003 45.62 2006 45.62 2008 45.43 2009 45.43 2010 45.43 2011 45.43 2012 45.43 2013 45.43 2014 45.53 2015 45.53 2016 45.53 2019 45.62 2020 45.62 2021 45.62