Year	Dollars
1992-01-01	5192800
1997-01-01	10584162
2002-01-01	17753200
2003-01-01	17291810
2004-01-01	28827936
2005-01-01	58329114
2006-01-01	99987459
2007-01-01	112373164
2008-01-01	292790135
2009-01-01	204281953
2010-01-01	358390708
2011-01-01	646508244
2012-01-01	739007151
2013-01-01	313797347
2014-01-01	184324047
2015-01-01	222723447
2016-01-01	204565014