Year	Dollars
1992-01-01	20555626
1997-01-01	206150529
2002-01-01	257509222
2003-01-01	225826972
2004-01-01	302945117
2005-01-01	418997367
2006-01-01	1056661009
2009-01-01	1837488323
2010-01-01	973205395
2011-01-01	651474860
2012-01-01	1269641029
2013-01-01	2208633614
2014-01-01	2126496011
2015-01-01	1144033756
2016-01-01	759429340