Year	Percent
1996-01-01	21.779500000000000
1997-01-01	17.703100000000000
1998-01-01	15.916800000000000
1999-01-01	12.205600000000000
2000-01-01	13.498200000000000
2001-01-01	1.688030000000000
2002-01-01	-9.424220000000000
2003-01-01	-50.231500000000000
2004-01-01	22.228700000000000
2005-01-01	16.068100000000000
2006-01-01	19.369700000000000
2007-01-01	21.802900000000000
2008-01-01	14.602700000000000
2009-01-01	7.134620000000000
2010-01-01	10.374800000000000
2011-01-01	11.111800000000000
2012-01-01	11.681600000000000
2013-01-01	9.777130000000000
2014-01-01	9.587589999999999
2015-01-01	7.556500000000000
2016-01-01	8.600430000000001