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	100.0000
2004-01-01	100.0000
2005-01-01	100.0000
2006-01-01	100.0000
2007-01-01	100.0000
2008-01-01	100.0000
2009-01-01	100.0000
2010-01-01	100.0000
2011-01-01	94.3484
2012-01-01	88.6504
2013-01-01	90.3600
2014-01-01	96.2729
2015-01-01	100.0000
2016-01-01	100.0000