Year	Percent Change From Preceding Period
2004-01-01	9.54407841491562
2005-01-01	21.91955123819950
2006-01-01	-3.51920638305035
2007-01-01	15.46496074440240
2008-01-01	42.99644407732370
2009-01-01	20.99764712512500
2010-01-01	30.20185024539910
2011-01-01	24.36235668675880
2012-01-01	32.07296157400250
2013-01-01	2.65191114015028
2014-01-01	40.21630452367120
2015-01-01	2.27746873941982
2016-01-01	-5.07469366167229
2017-01-01	-3.20825402638997