Year	Dollars
1992-01-01	159358409
1997-01-01	278562224
2002-01-01	149594191
2003-01-01	111225518
2004-01-01	166556708
2005-01-01	134411068
2006-01-01	222050781
2007-01-01	358615243
2008-01-01	454888982
2009-01-01	323396753
2010-01-01	327977093
2011-01-01	466534724
2012-01-01	535670995
2013-01-01	479680722
2014-01-01	607573708
2015-01-01	567794124
2016-01-01	648888284