Year	Percent Change From Preceding Period
2004-01-01	8.89447438620810
2005-01-01	47.07195396983860
2006-01-01	37.34877591391950
2007-01-01	-1.57483674584385
2008-01-01	4.08261012992286
2009-01-01	15.79045210050740
2010-01-01	43.82763651612890
2011-01-01	93.35256783669780
2012-01-01	-3.19122255273197
2013-01-01	35.03604464961320
2014-01-01	43.99749218298090
2015-01-01	27.08781868003010
2016-01-01	5.93332299284482
2017-01-01	2.32599995340653