Year	%
1996	79.44
1997	79.44
1998	79.44
1999	79.44
2000	79.44
2001	79.44
2002	79.44
2003	79.44
2004	79.44
2005	79.85
2006	79.85
2007	79.95
2008	79.95
2010	84.11
2011	84.11
2012	83.32
2013	83.32
2015	83.76
2019	84.34
2021	84.34