Year	Percent Change from Year Ago
1997-01-01	-0.594659089102380
1998-01-01	-0.328715515859433
1999-01-01	1.432839478797710
2000-01-01	4.266741357142250
2001-01-01	2.908764881850380
2002-01-01	1.652494054673870
2003-01-01	3.602989459360400
2004-01-01	4.906563763565540
2005-01-01	6.533468805920350
2006-01-01	6.853522333712450
2007-01-01	5.602643684959630
2008-01-01	2.682282724452240
2009-01-01	-4.802572091286150
2010-01-01	2.273420051657250
2011-01-01	1.777833186623290
2012-01-01	-0.799844281176635
2013-01-01	-0.483671040702581
2014-01-01	2.715116131578020
2015-01-01	5.309238519098160
2016-01-01	2.450542387396220
2017-01-01	4.285605168936250