Year	Dollars
1992-01-01	3853724
1997-01-01	7276993
2002-01-01	1761506
2003-01-01	2291871
2004-01-01	1906043
2005-01-01	5381278
2006-01-01	5338073
2007-01-01	6128719
2008-01-01	9789900
2009-01-01	12519868
2010-01-01	16041787
2011-01-01	21803075
2012-01-01	31551362
2013-01-01	63579644
2014-01-01	36264712
2015-01-01	57924018
2016-01-01	33095282