Year	Percent Change From Preceding Period
2004-01-01	71.62083232347090
2005-01-01	-73.76930691688390
2006-01-01	56.14735687913590
2007-01-01	-65.96930695150630
2008-01-01	41.10045682361040
2009-01-01	388.15629788812800
2010-01-01	143.28181018653400
2011-01-01	62.83855488517690
2012-01-01	27.14902091617380
2013-01-01	3.73880983962299
2014-01-01	4.72719390340374
2015-01-01	-2.32025854053275
2016-01-01	-3.55119365941776
2017-01-01	5.86866735049691