Year	Dollars
1997-01-01	476605
2002-01-01	1396012
2003-01-01	2068705
2004-01-01	3233785
2005-01-01	2226407
2006-01-01	6538763
2007-01-01	11424221
2008-01-01	11312051
2009-01-01	6277545
2010-01-01	29257398
2011-01-01	28241056
2012-01-01	7963639
2013-01-01	9207993
2014-01-01	8424150
2015-01-01	8004441
2016-01-01	4100746