Year	Dollars
1992-01-01	6850225
1997-01-01	45354336
2002-01-01	26274672
2003-01-01	52178283
2004-01-01	35011841
2005-01-01	37910136
2006-01-01	58752042
2007-01-01	74827170
2008-01-01	113948743
2009-01-01	99587416
2010-01-01	150258526
2011-01-01	92190831
2012-01-01	226691353
2013-01-01	216866598
2014-01-01	169984222
2015-01-01	108094986
2016-01-01	55651409