Year	%
1995	77.27
1998	77.27
1999	77.43
2000	77.43
2001	77.43
2002	77.1
2003	77.1
2004	77.1
2005	77.1
2006	77.1
2007	77.1
2008	76.79
2009	76.79
2010	76.79
2011	76.79
2012	77.61
2013	77.61
2014	77.61
2015	77.61
2016	77.61
2018	77.83
2019	77.83
2020	77.83
2021	77.83