Year	Dollars
1997-01-01	1022063
2002-01-01	6513800
2003-01-01	4945200
2004-01-01	3744187
2006-01-01	4294842
2007-01-01	16519713
2008-01-01	7422688
2009-01-01	10970597
2010-01-01	16573415
2011-01-01	15193085
2012-01-01	7978042
2013-01-01	11027573
2014-01-01	9969156
2015-01-01	7603291