Year	Dollars
1992-01-01	177082271
1997-01-01	414225397
2002-01-01	626338144
2003-01-01	688787607
2004-01-01	792398018
2005-01-01	783077146
2006-01-01	881864404
2007-01-01	926570582
2008-01-01	834629869
2009-01-01	521747317
2010-01-01	501082177
2011-01-01	469384145
2012-01-01	465445180
2013-01-01	598066803
2014-01-01	880879331
2015-01-01	552980624
2016-01-01	588629085