Year	%
1997	69.08
2001	69.08
2002	69.08
2003	69.08
2004	66.67
2005	66.67
2006	66.67
2007	60.79
2008	60.79
2009	60.79
2010	60.79
2011	60.79
2012	58.41
2013	58.41
2015	58.41
2016	58.41
2018	58.91
2020	58.91
2021	58.91