Year	Dollars
1992-01-01	241500571
1997-01-01	377436786
2002-01-01	327014444
2003-01-01	354763845
2004-01-01	351529636
2005-01-01	396782669
2006-01-01	451929242
2007-01-01	433879191
2008-01-01	507525817
2009-01-01	469815001
2010-01-01	553269992
2011-01-01	520731896
2012-01-01	498588799
2013-01-01	439231616
2014-01-01	480894318
2015-01-01	435397733
2016-01-01	413079768