Year	Percent
1999-01-01	-23.699739460
2000-01-01	4.258114815
2001-01-01	0.133543462
2002-01-01	0.520238042
2003-01-01	20.891191480
2004-01-01	0.170679539
2005-01-01	25.367216110
2006-01-01	32.433479310
2007-01-01	18.677106860
2008-01-01	16.221996310
2009-01-01	3.858619690
2010-01-01	4.011466026
2011-01-01	5.493686676
2012-01-01	2.135099649
2013-01-01	7.129484653