Year	Percent
1995-01-01	9.6694100000000010
1996-01-01	6.3317600000000000
1997-01-01	26.6082000000000000
1998-01-01	6.0571100000000000
1999-01-01	7.0595700000000000
2000-01-01	3.7042300000000004
2001-01-01	3.6801800000000005
2002-01-01	4.5803000000000000
2003-01-01	14.1809000000000000
2004-01-01	-16.0619000000000000
2005-01-01	-17.8720000000000000
2006-01-01	-89.9135000000000000
2007-01-01	249.2330000000000000
2008-01-01	347.7200000000000000
2009-01-01	441.3470000000000000
2010-01-01	355.3140000000000000
2011-01-01	335.3640000000000300
2012-01-01	41.9232000000000000
2013-01-01	109.5230000000000000
2014-01-01	22.7283000000000000
2015-01-01	30.1640000000000000
2016-01-01	27.1760000000000000