Year	Dollars
1997-01-01	398332
2002-01-01	1081172
2003-01-01	270413
2004-01-01	776308
2005-01-01	1528721
2006-01-01	956272
2007-01-01	1047364
2008-01-01	1349153
2009-01-01	1885564
2010-01-01	1605510
2011-01-01	1055328
2012-01-01	3079245
2013-01-01	1919431
2014-01-01	5014485
2015-01-01	6942236
2016-01-01	7594296