Year	%
1996	99.16333
1998	100
1999	99.65813
2000	99.61383
2001	99.3301
2002	98.93438
2003	99.33058
2004	99.44374
2005	98.92543
2006	99.18937
2007	99.03354
2008	99.28362
2009	99.33293
2010	99.17827
2011	99.9183
2012	99.74876
2013	99.64859
2014	100
2015	100
2016	99.3537