Year	Dollars
1997-01-01	111715
2002-01-01	393589
2003-01-01	671762
2004-01-01	1829275
2005-01-01	1013282
2008-01-01	13579302
2009-01-01	36840
2010-01-01	354126
2011-01-01	523946
2013-01-01	11778115
2015-01-01	1598517
2016-01-01	3661371