Year	%
1996	23.14
1997	23.14
1998	23.14
1999	23.14
2000	23.14
2001	23.14
2002	23.13
2003	23.13
2004	23.13
2005	23.13
2006	23.13
2007	23.13
2008	23.2
2009	23.2
2010	23.2
2011	23.2
2012	23.2
2014	23.66
2015	23.66
2016	23.66
2017	23.66
2018	23.65
2019	23.65
2020	23.65
2021	23.65