Year	Percent
1999-01-01	-1.2963500000000000
2000-01-01	-1.2963500000000000
2001-01-01	-1.2963500000000000
2002-01-01	-1.2963500000000000
2003-01-01	-1.2963500000000000
2004-01-01	-1.2963500000000000
2005-01-01	-1.2963500000000000
2006-01-01	-1.2963500000000000
2007-01-01	-1.2963500000000000
2008-01-01	-1.2963500000000000
2009-01-01	-1.2963500000000000
2010-01-01	-1.2963500000000000
2011-01-01	-1.2963500000000000
2012-01-01	-1.2963500000000000
2013-01-01	-3.2378800000000000
2014-01-01	3.3557600000000000
2015-01-01	0.9615379999999999
2016-01-01	1.3921100000000000