Year	Dollars
1997-01-01	7710458
2002-01-01	2835376
2003-01-01	1924149
2004-01-01	3263878
2005-01-01	4984833
2006-01-01	9364656
2007-01-01	12110824
2008-01-01	11844701
2009-01-01	7393136
2010-01-01	4563729
2011-01-01	22547398
2012-01-01	11822021
2013-01-01	5394182
2014-01-01	3359028
2015-01-01	5003763
2016-01-01	1996746