Year	Dollars
1997-01-01	230636
2002-01-01	1331346
2003-01-01	1091453
2004-01-01	2216876
2005-01-01	3017284
2006-01-01	2322142
2007-01-01	4125256
2008-01-01	6169760
2009-01-01	5561619
2010-01-01	9488401
2011-01-01	12278319
2012-01-01	12717275
2013-01-01	14568781
2014-01-01	21167624
2015-01-01	35648612
2016-01-01	16241155