Year	Dollars
1992-01-01	2496421580
1997-01-01	4556345881
2002-01-01	3114794833
2003-01-01	3197668934
2004-01-01	3915050289
2005-01-01	3617635916
2006-01-01	4423103189
2007-01-01	4135129411
2008-01-01	3911904573
2009-01-01	3147162016
2010-01-01	3873376092
2011-01-01	4025425786
2012-01-01	3876182995
2013-01-01	4047913406
2014-01-01	4237464751
2015-01-01	3711768546
2016-01-01	3734493870