Year	Dollars
1992-01-01	113787187
1997-01-01	87069096
2002-01-01	136542015
2003-01-01	138695720
2004-01-01	228136361
2005-01-01	311341538
2006-01-01	431342244
2007-01-01	588961609
2008-01-01	552362824
2009-01-01	533754180
2010-01-01	849552762
2011-01-01	1344451887
2012-01-01	1276598961
2013-01-01	1208026829
2014-01-01	1384707217
2015-01-01	1167638261
2016-01-01	1145035374