Year	Dollars
1997-01-01	3314651
2002-01-01	15615944
2005-01-01	24767356
2006-01-01	37952478
2007-01-01	32736997
2008-01-01	37138034
2009-01-01	25588569
2010-01-01	24391758
2011-01-01	18754697
2012-01-01	18669559
2013-01-01	31309797
2014-01-01	20548256
2015-01-01	15395328
2016-01-01	19670685