Year	%
1996	84.44
1997	84.44
1998	84.44
1999	84.44
2000	84.44
2001	84.44
2002	84.44
2003	84.44
2004	84.26
2005	84.26
2006	84.26
2007	84.26
2008	84.32
2009	84.32
2010	84.32
2011	84.32
2012	84.32
2013	84.35
2014	84.35
2016	84.35
2020	84.3
2021	84.3