Year	Percent
1998-01-01	100.0000
1999-01-01	100.0000
2000-01-01	100.0000
2001-01-01	100.0000
2002-01-01	100.0000
2003-01-01	98.4640
2004-01-01	98.1066
2005-01-01	97.5511
2006-01-01	96.7619
2007-01-01	96.9167
2008-01-01	100.0000
2009-01-01	97.0758
2010-01-01	92.3665
2011-01-01	93.5270
2012-01-01	92.4073
2013-01-01	90.9701
2014-01-01	91.1975
2015-01-01	89.1613
2016-01-01	88.5210