Year	%
1999	59.37
2000	59.37
2001	59.37
2002	59.37
2004	58.9
2005	58.9
2006	58.9
2007	58.9
2008	58.41
2009	58.41
2010	58.41
2011	58.41
2012	58.41
2013	58.41
2014	58.41
2015	58.41
2016	58.41
2018	59.07
2019	59.03
2020	59.03
2021	59.03