Year	%
1996	35.36
1997	35.36
1998	35.36
1999	35.36
2000	35.36
2001	35.36
2002	35.36
2003	34.16
2004	34.16
2005	34.16
2006	34.16
2007	34.16
2008	34.16
2009	32.26
2010	32.26
2011	32.26
2012	32.26
2013	32.26
2015	32.42
2016	32.42
2017	32.42
2019	32.58
2020	32.58
2021	32.58