Year	Dollars
1992-01-01	1151590
1997-01-01	22791767
2002-01-01	5737896
2003-01-01	10329327
2004-01-01	16783046
2005-01-01	18301117
2006-01-01	13845113
2007-01-01	12043703
2008-01-01	11097807
2009-01-01	9514233
2010-01-01	23631592
2011-01-01	53276278
2012-01-01	50384842
2013-01-01	33588680
2014-01-01	33393114
2015-01-01	34732715
2016-01-01	50005122