Year	Dollars
1997-01-01	1312696
2002-01-01	611701
2003-01-01	1264903
2004-01-01	4867970
2005-01-01	5185170
2006-01-01	33395034
2007-01-01	15735188
2008-01-01	20952898
2009-01-01	4117929
2010-01-01	10662758
2011-01-01	23726804
2012-01-01	27462202
2013-01-01	24056789
2014-01-01	28091943
2015-01-01	22453747
2016-01-01	16180010