Year	Dollars
1997-01-01	4451094
2002-01-01	361261
2003-01-01	1330272
2004-01-01	4958261
2005-01-01	11521634
2006-01-01	17516497
2007-01-01	14790208
2008-01-01	12933941
2009-01-01	10892729
2010-01-01	4008423
2011-01-01	4695396
2012-01-01	22075707
2013-01-01	5058257
2014-01-01	4290898
2015-01-01	3681245
2016-01-01	7175815