Year	Percent Change From Preceding Period
2004-01-01	45.18912638988300
2005-01-01	17.83226421154020
2006-01-01	18.49992051061430
2007-01-01	39.41629453450450
2008-01-01	56.75446611554520
2009-01-01	45.36169406185410
2010-01-01	31.51716384039540
2011-01-01	21.80641336659400
2012-01-01	-6.86690284879105
2013-01-01	11.86155807947520
2014-01-01	5.36886708472111
2015-01-01	9.13852945790313
2016-01-01	16.72752381208250
2017-01-01	4.94816774988567