Year	%
1996	90.64
1997	90.76
1998	90.76
1999	90.76
2000	90.76
2001	90.76
2002	90.76
2003	90.76
2006	90.42
2007	90.42
2010	90.42
2011	89.21
2012	89.21
2013	89.21
2015	89.21
2016	89.21
2017	89.21
2020	83.78