Year	%
1996	77.03
1999	77.4
2000	77.4
2001	77.4
2002	77.4
2003	77.4
2006	77.03
2007	76.62
2008	76.62
2009	76.62
2010	76.62
2011	76.62
2012	76.62
2013	76.62
2015	76.62
2016	76.62
2017	76.62
2018	76.62
2019	76.3
2020	76.3
2021	76.3