Year	Dollars
1997-01-01	324526
2002-01-01	480632
2003-01-01	711839
2004-01-01	958433
2005-01-01	810638
2006-01-01	1345068
2007-01-01	3087731
2008-01-01	4553138
2009-01-01	2979123
2011-01-01	2429415
2012-01-01	6686698
2013-01-01	5708073
2014-01-01	4817629
2015-01-01	3997224
2016-01-01	2616364