Year	Dollars
1997-01-01	295583934
2002-01-01	74225679
2003-01-01	80277581
2004-01-01	124768043
2005-01-01	127748623
2006-01-01	99032548
2007-01-01	150597421
2008-01-01	180086241
2009-01-01	155158396
2010-01-01	172143028
2011-01-01	137211050
2012-01-01	174286113
2013-01-01	278333659
2014-01-01	201080641
2015-01-01	129902922
2016-01-01	94078526