Year	Dollars
1997-01-01	56933
2002-01-01	131417
2007-01-01	525419
2009-01-01	1867967
2010-01-01	1506117
2011-01-01	614447
2012-01-01	935107
2013-01-01	2537278
2014-01-01	3317352
2016-01-01	342972