Year	Dollars
1992-01-01	4222542
1997-01-01	10169914
2002-01-01	1041960
2003-01-01	3965878
2004-01-01	2482121
2005-01-01	2756379
2006-01-01	8625564
2007-01-01	17827953
2008-01-01	28092426
2009-01-01	17748262
2010-01-01	20030056
2011-01-01	26288155
2012-01-01	41601513
2013-01-01	65974766
2014-01-01	53368968
2015-01-01	39978378
2016-01-01	34409585