Year	Percent
1996-01-01	100.0000
1997-01-01	100.0000
1998-01-01	83.2126
1999-01-01	84.5481
2000-01-01	86.7352
2001-01-01	88.7812
2002-01-01	88.6971
2003-01-01	91.8933
2004-01-01	87.2770
2005-01-01	91.9727
2006-01-01	90.0782
2007-01-01	87.7887
2008-01-01	88.9460
2009-01-01	87.9215
2010-01-01	83.5942
2011-01-01	80.7098
2012-01-01	79.4998
2013-01-01	77.4741
2014-01-01	80.2743
2015-01-01	95.7402
2016-01-01	91.7035