Year	Dollars
1997-01-01	652383
2002-01-01	598250
2003-01-01	446267
2004-01-01	1848150
2005-01-01	2223431
2006-01-01	1761848
2007-01-01	14268337
2008-01-01	15505470
2009-01-01	6131905
2010-01-01	4628601
2011-01-01	3113620
2012-01-01	4572207
2013-01-01	5356841
2014-01-01	4810705
2015-01-01	3411514
2016-01-01	2537264