Year	Percent Change From Preceding Period
2004-01-01	18.60893732522130
2005-01-01	32.83807001021500
2006-01-01	18.71086006232120
2007-01-01	26.08052861267640
2008-01-01	26.06105216628160
2009-01-01	31.28742391707200
2010-01-01	28.46956585456860
2011-01-01	22.55111840221180
2012-01-01	22.47712947686440
2013-01-01	16.71021185484750
2014-01-01	16.56454020396190
2015-01-01	4.93226676373838
2016-01-01	17.86189770629470
2017-01-01	6.99097513633880
2018-01-01	16.90993448737760
2019-01-01	15.20276086674240