Year	%
1996	97.91
1997	97.91
1998	97.91
1999	97.91
2000	97.91
2001	97.91
2002	97.91
2003	97.91
2004	97.88
2005	97.88
2006	97.88
2007	97.88
2008	97.88
2009	97.93
2010	97.93
2011	97.93
2014	98.2
2016	98.2
2017	98.17
2018	98.17
2019	98.1
2020	98.1
2021	98.1