Year	Dollars
1992-01-01	12462789
1997-01-01	3776208
2002-01-01	37863881
2003-01-01	35484643
2004-01-01	18127438
2005-01-01	30389004
2006-01-01	47763878
2007-01-01	115584034
2008-01-01	235368516
2009-01-01	88150380
2010-01-01	139015145
2011-01-01	180771407
2012-01-01	124027661
2013-01-01	193083709
2014-01-01	108967393
2015-01-01	64704058
2016-01-01	41119377