Year	%
1995	65.21
1996	65.13
1997	65.13
1998	65.13
1999	65.12
2000	65.13
2001	65.13
2002	65.13
2003	65.13
2004	62.27
2005	62.27
2006	62.27
2007	62.26
2008	62.37
2009	62.37
2010	62.37
2011	62.37
2012	62.37
2013	61.86
2015	61.85
2016	61.85
2017	61.85
2018	62.17
2019	62.15
2020	62.15
2021	62.15