Year	%
1996	31.03
1997	31.03
1998	31.03
1999	31.03
2000	31.03
2001	31.03
2002	30.31
2003	30.31
2004	30.31
2005	30.31
2006	30.31
2007	30.31
2008	29.19
2009	29.19
2010	29.19
2011	29.19
2012	28.21
2013	28.21
2014	28.21
2015	28.21
2016	28.21
2017	28.14
2018	28.14
2019	28.13
2020	28.13
2021	28.13