Year	%
1999	99.96948
2000	100
2001	99.90002
2003	100
2005	99.89556
2006	99.80885
2007	99.81767
2008	99.54774
2009	99.50542
2010	99.68305
2011	99.6844
2012	99.86477
2013	100
2014	99.84629
2015	99.25601
2016	99.11655