Year	Dollars
1992-01-01	1682279163
1997-01-01	2044551738
2002-01-01	2076554959
2003-01-01	2095037168
2004-01-01	3135724877
2005-01-01	2996010057
2006-01-01	3069718475
2007-01-01	3820523013
2008-01-01	5396892319
2009-01-01	4418393483
2010-01-01	5880696659
2011-01-01	8409500934
2012-01-01	10831073293
2013-01-01	8248132061
2014-01-01	7088708277
2015-01-01	5544319855
2016-01-01	4720099760