Year	Dollars
1992-01-01	55907306
1997-01-01	191257238
2002-01-01	112150868
2003-01-01	139634883
2004-01-01	242744334
2005-01-01	210029231
2006-01-01	190624731
2007-01-01	189568091
2008-01-01	229083231
2009-01-01	237439451
2010-01-01	255743473
2011-01-01	425018880
2012-01-01	507409547
2013-01-01	396746429
2014-01-01	389883887
2015-01-01	333471716
2016-01-01	292490228