Year	Dollars
1992-01-01	35294206
1997-01-01	51242594
2002-01-01	87982393
2003-01-01	88926921
2004-01-01	140301577
2005-01-01	198728290
2006-01-01	204135050
2007-01-01	334709138
2008-01-01	373708416
2009-01-01	301105163
2010-01-01	329536680
2011-01-01	324292486
2012-01-01	286404654
2013-01-01	291309932
2014-01-01	260673037
2015-01-01	281014514
2016-01-01	296267080