Year	Percent
1998-01-01	100.0000
1999-01-01	99.3403
2000-01-01	100.0000
2001-01-01	96.3153
2002-01-01	97.8674
2003-01-01	79.8459
2004-01-01	79.1923
2005-01-01	71.6503
2006-01-01	69.0732
2007-01-01	68.2115
2008-01-01	73.8870
2009-01-01	63.6507
2010-01-01	64.2332
2011-01-01	61.1335
2012-01-01	63.9908
2013-01-01	63.9379
2014-01-01	66.3881
2015-01-01	55.6923
2016-01-01	55.3522