Year	Dollars
1992-01-01	496941140
1997-01-01	579070375
2002-01-01	484398005
2003-01-01	468526766
2004-01-01	616008195
2005-01-01	628813497
2006-01-01	654403059
2007-01-01	556769192
2008-01-01	598555670
2009-01-01	468365305
2010-01-01	481189096
2011-01-01	702125105
2012-01-01	797008029
2013-01-01	679838447
2014-01-01	586687872
2015-01-01	509634513
2016-01-01	512876037