Year	Dollars
1992-01-01	175240243
1997-01-01	245815475
2002-01-01	244873287
2003-01-01	398291682
2004-01-01	381845026
2005-01-01	428164711
2006-01-01	482373741
2007-01-01	625085385
2008-01-01	735866658
2009-01-01	508707265
2010-01-01	599152804
2011-01-01	826172411
2012-01-01	797270589
2013-01-01	622413432
2014-01-01	724566080
2015-01-01	572403221
2016-01-01	646105885