Year	%
1995	57.39
1998	57.56
2000	57.56
2002	57.56
2003	57.93
2004	57.93
2005	57.93
2006	57.93
2008	57.21
2009	57.21
2010	57.21
2011	57.21
2012	58.91
2013	58.91
2015	58.91
2016	58.91