Year	Dollars
1997-01-01	3655951
2002-01-01	2358678
2003-01-01	1486225
2004-01-01	4192202
2005-01-01	4604858
2006-01-01	2562905
2007-01-01	4587123
2008-01-01	3774572
2009-01-01	9464804
2010-01-01	10281486
2011-01-01	8097277
2012-01-01	4590373
2013-01-01	21916419
2014-01-01	11511467
2015-01-01	14202600
2016-01-01	11919705