Year	Dollars
1992-01-01	7633662
1997-01-01	2965574
2002-01-01	1851360
2003-01-01	3083974
2004-01-01	5043058
2005-01-01	2495188
2006-01-01	1597115
2007-01-01	4878771
2008-01-01	19226774
2009-01-01	37981799
2010-01-01	20572382
2011-01-01	62857602
2012-01-01	179803419
2013-01-01	196337799
2014-01-01	122513530
2015-01-01	70730250
2016-01-01	140292928