Year	Dollars
1992-01-01	31922872
1997-01-01	71960496
2002-01-01	92029402
2003-01-01	113033818
2004-01-01	134608114
2005-01-01	210780441
2006-01-01	282536034
2007-01-01	318843571
2008-01-01	408661081
2009-01-01	429520278
2010-01-01	509149159
2011-01-01	534126902
2012-01-01	530053604
2013-01-01	461182460
2014-01-01	689089501
2015-01-01	742013099
2016-01-01	509359889