Year	Dollars
1997-01-01	322571
2002-01-01	367423
2003-01-01	210587
2004-01-01	879049
2005-01-01	1730082
2006-01-01	1382612
2007-01-01	2806439
2009-01-01	5142080
2010-01-01	11436870
2011-01-01	17142612
2012-01-01	13950676
2013-01-01	4338409
2014-01-01	23980229
2015-01-01	4120159
2016-01-01	2661125