Year	%
2000	100
2001	98.56489
2002	99.66224
2003	100
2004	99.84475
2005	100
2006	100
2007	100
2008	99.77976
2009	99.82868
2010	100
2011	100
2012	99.84671
2013	99.66062
2014	99.44845
2015	99.98336
2016	98.34515
2017	99.6585
2018	99.53553