Year	Dollars
1992-01-01	117673573
1997-01-01	62386359
2002-01-01	51566920
2003-01-01	48441880
2004-01-01	52318355
2005-01-01	59394516
2006-01-01	79424712
2007-01-01	125112657
2008-01-01	285296809
2009-01-01	273674647
2010-01-01	197994544
2011-01-01	293868257
2012-01-01	443791110
2013-01-01	394154007
2014-01-01	198301702
2015-01-01	111981270
2016-01-01	97001823