Year	%
1996	96.16
1998	96.16
1999	96.16
2000	96.16
2001	96.16
2003	96.27
2004	96.27
2005	96.27
2006	96.27
2007	96.55
2008	96.55
2009	96.55
2010	96.55
2011	96.55
2012	96.92
2013	96.92
2014	96.92
2015	96.92
2016	96.92
2017	96.95
2019	96.88
2021	96.88