Year	%
1999	90.31
2000	90.31
2001	90.31
2002	90.59
2003	90.59
2004	90.51
2005	90.51
2006	90.51
2007	90.35
2008	90.42
2009	90.5
2011	90.5
2012	88.89
2013	88.89
2014	88.89
2015	88.21
2016	88.21
2017	88.87
2021	88.8