Year	Percent
1996-01-01	124.0740
1997-01-01	118.4620
1998-01-01	75.0929
1999-01-01	74.6761
2000-01-01	84.4553
2001-01-01	92.0558
2002-01-01	82.0380
2003-01-01	66.6180
2004-01-01	59.5608
2005-01-01	53.1017
2006-01-01	39.9332
2007-01-01	29.1905
2008-01-01	53.5382
2009-01-01	32.0099
2010-01-01	37.0938
2011-01-01	35.1076
2012-01-01	32.8563
2013-01-01	30.6277
2014-01-01	30.3159
2015-01-01	33.1049
2016-01-01	33.3406