Year	Dollars
1992-01-01	1254260014
1997-01-01	2033921466
2002-01-01	1859525674
2003-01-01	1883957787
2004-01-01	2024297561
2005-01-01	2205317517
2006-01-01	2532126044
2007-01-01	3002790344
2008-01-01	3336021064
2009-01-01	3053267998
2010-01-01	3148597709
2011-01-01	3932835277
2012-01-01	4090939413
2013-01-01	3584699960
2014-01-01	4255625396
2015-01-01	4073152701
2016-01-01	3767487360