Year	Dollars
1992-01-01	5890690
1997-01-01	19853772
2002-01-01	19657006
2003-01-01	55654851
2004-01-01	66740965
2005-01-01	32922759
2006-01-01	20772244
2007-01-01	64396177
2008-01-01	51562245
2009-01-01	52453453
2010-01-01	92880688
2011-01-01	143220095
2012-01-01	104224310
2013-01-01	303929624
2014-01-01	516597574
2015-01-01	238629415
2016-01-01	153244827