Year	Dollars
1992-01-01	2836386
1997-01-01	15486296
2002-01-01	48072212
2003-01-01	60269220
2004-01-01	45007654
2005-01-01	44796439
2006-01-01	35644950
2007-01-01	13811569
2008-01-01	32021302
2009-01-01	12136936
2010-01-01	12599275
2011-01-01	9407501
2012-01-01	25098770
2013-01-01	12795534
2014-01-01	10454097
2015-01-01	6470130
2016-01-01	3917934