Year	Dollars
1992-01-01	164489710
1997-01-01	143543924
2002-01-01	172135927
2003-01-01	240203856
2004-01-01	228645317
2005-01-01	309798992
2006-01-01	436632783
2007-01-01	573305622
2008-01-01	614147928
2009-01-01	287268000
2010-01-01	364705345
2011-01-01	582059051
2012-01-01	610147286
2013-01-01	544318658
2014-01-01	556194264
2015-01-01	397835321
2016-01-01	308646190