Year	Dollars
1997-01-01	286259
2002-01-01	66821
2003-01-01	32018
2004-01-01	221798
2005-01-01	510106
2007-01-01	719255
2008-01-01	1074313
2009-01-01	726372
2010-01-01	2156171
2011-01-01	1253573
2012-01-01	4531764
2013-01-01	3590017
2014-01-01	2908008
2015-01-01	2397512
2016-01-01	835318