Year	Dollars
1992-01-01	4569904479
1997-01-01	8797688252
2002-01-01	6884143016
2003-01-01	6474682282
2004-01-01	7344657429
2005-01-01	7457982133
2006-01-01	8745276573
2007-01-01	9382472115
2008-01-01	10101703506
2009-01-01	7245209119
2010-01-01	8409434412
2011-01-01	9441226839
2012-01-01	8051970770
2013-01-01	8433106921
2014-01-01	8572514571
2015-01-01	7315914798
2016-01-01	7389672951