Year	%
1994	100
1995	99.76401
1996	99.82085
1998	100
1999	100
2000	99.49301
2001	100
2002	99.79659
2005	99.92579
2006	99.18775
2007	99.61773
2008	100
2009	100
2010	99.23985
2011	100
2015	99.12632
2016	98.76436