Year	%
1995	98.72
1996	74.72
1997	57.56
1998	51.82
1999	63.32
2000	65.45
2001	65.45
2002	71.54
2003	64.85
2004	70.6
2005	70.6
2006	70.6
2007	65.51
2008	70.75
2009	70.75
2010	70.75
2011	70.73
2012	71
2013	77.08
2014	83.45
2015	70.98
2016	77.07
2017	13.51