Year	Dollars
1992-01-01	2591048
1997-01-01	1472076
2002-01-01	5878297
2003-01-01	6642041
2004-01-01	6750195
2005-01-01	18450201
2006-01-01	30130795
2007-01-01	72096186
2008-01-01	35789070
2009-01-01	38227660
2010-01-01	17993462
2011-01-01	41026990
2012-01-01	45825330
2013-01-01	44609095
2014-01-01	40031354
2015-01-01	71319602
2016-01-01	141396832