Year	%
1995	36.06
1997	36.06
2001	36.1
2002	36.1
2003	36.08
2004	36.08
2005	36.08
2006	36.08
2007	36.15
2008	36.15
2009	36.15
2010	36.15
2011	36.15
2012	36.15
2013	35.89
2015	35.89
2016	35.89
2017	35.89