Year	Dollars
1997-01-01	4556316
2002-01-01	2422345
2003-01-01	3817148
2004-01-01	2291344
2005-01-01	9939168
2006-01-01	25158711
2007-01-01	63220486
2008-01-01	88287460
2009-01-01	23764342
2010-01-01	27537752
2011-01-01	52058975
2012-01-01	53456825
2013-01-01	54500301
2014-01-01	38341985
2015-01-01	9887315
2016-01-01	42705898