Year	Dollars
1997-01-01	6814167
2002-01-01	26427120
2003-01-01	27969276
2004-01-01	25013720
2005-01-01	27101924
2006-01-01	17043156
2007-01-01	9310202
2008-01-01	8868451
2009-01-01	7026121
2010-01-01	19586602
2011-01-01	11357820
2012-01-01	23244769
2013-01-01	10735810
2014-01-01	13784376
2015-01-01	5688114
2016-01-01	31757396