Year	Dollars
1992-01-01	7259890
1997-01-01	11955514
2002-01-01	15206169
2003-01-01	18906510
2004-01-01	22349838
2005-01-01	23793219
2006-01-01	23544367
2007-01-01	26377307
2008-01-01	47702865
2009-01-01	116945883
2010-01-01	71795259
2011-01-01	77398487
2012-01-01	55600453
2013-01-01	51672600
2014-01-01	41197925
2015-01-01	47021808
2016-01-01	38158749