Year	Dollars
1992-01-01	161625375
1997-01-01	231584542
2002-01-01	246921257
2003-01-01	234222538
2004-01-01	324734741
2005-01-01	409014693
2006-01-01	486027725
2007-01-01	452595261
2008-01-01	560775558
2009-01-01	442484773
2010-01-01	453288548
2011-01-01	518561952
2012-01-01	528703684
2013-01-01	506920661
2014-01-01	543737037
2015-01-01	504465564
2016-01-01	455065425