Year	%
1995	56.62
1998	56.17
2000	56.17
2002	56.17
2003	55.71
2004	55.71
2005	55.71
2006	55.71
2008	56.44
2009	56.46
2010	56.46
2011	56.46
2012	56.7
2013	56.7
2015	56.7
2016	56.7