Year	Percent
1999-01-01	-8.904968262
2000-01-01	1.027786613
2001-01-01	0.029367814
2002-01-01	0.063082039
2003-01-01	1.895906687
2004-01-01	0.013763427
2005-01-01	2.253454685
2006-01-01	3.171622038
2007-01-01	1.924010992
2008-01-01	1.739299655
2009-01-01	0.427718908
2010-01-01	0.497467816
2011-01-01	0.721658170
2012-01-01	0.257943809
2013-01-01	0.786415875