Year % 1996 11.16 1997 11.16 1998 11.16 1999 11.16 2000 11.16 2001 11.16 2002 11.16 2003 11.39 2004 11.39 2005 11.39 2006 11.39 2007 11.39 2008 11.39 2009 11.31 2010 11.31 2011 11.31 2012 11.31 2013 11.31 2015 10.99 2016 10.99 2017 10.99 2019 11.08 2020 11.08 2021 11.08