Year	%
1995	71.86
1996	71.67
1997	71.67
1998	71.67
1999	71.67
2000	71.67
2001	71.67
2002	71.72
2003	71.72
2004	71.72
2005	71.72
2006	71.72
2007	70.51
2008	69.58
2009	69.58
2010	69.58
2011	69.58
2012	70.79
2013	70.79
2014	70.79
2015	72.21
2016	72.21
2017	72.21
2018	72.21
2019	71.95
2020	71.95
2021	71.95