Year	%
1996	97.12
1997	97.12
1998	97.12
1999	97.12
2000	97.12
2001	97.12
2002	97.29
2003	97.29
2004	97.29
2005	97.29
2006	97.29
2007	97.29
2008	95.6
2009	95.6
2010	95.6
2011	95.6
2012	95.6
2014	93.69
2015	93.69
2016	93.69
2017	93.69
2018	93.6
2019	93.53
2020	93.53
2021	93.53