Year	Dollars
1992-01-01	50193253488
1997-01-01	84402349477
2002-01-01	83403125213
2003-01-01	83964767403
2004-01-01	99011497436
2005-01-01	105376570235
2006-01-01	115158496783
2007-01-01	123954539833
2008-01-01	131834568120
2009-01-01	110528101481
2010-01-01	132301730092
2011-01-01	146843826165
2012-01-01	149608101400
2013-01-01	153440319688
2014-01-01	158526013378
2015-01-01	152260541349
2016-01-01	151051452426