Year	Dollars
1992-01-01	180839534
1997-01-01	97107688
2002-01-01	138035518
2003-01-01	140518325
2004-01-01	135114256
2005-01-01	198995521
2006-01-01	232327414
2007-01-01	449419467
2008-01-01	407070867
2009-01-01	390157284
2010-01-01	492062274
2011-01-01	415754899
2012-01-01	439257962
2013-01-01	474413362
2014-01-01	409810999
2015-01-01	408537530
2016-01-01	488886241