Year	%
1999	73.42
2000	73.42
2001	73.42
2002	73.9
2003	73.9
2004	73.9
2005	73.83
2006	73.9
2007	71.98
2008	72.04
2009	72.04
2010	72.04
2011	72.04
2012	72.04
2013	68.32
2014	68.32
2015	68.32
2016	68.32
2017	69.13
2018	69.13
2019	69.08
2020	69.08
2021	69.08