Year	Dollars
1992-01-01	122841558
1997-01-01	244232893
2002-01-01	306917497
2003-01-01	273654849
2004-01-01	283539190
2005-01-01	459909583
2006-01-01	393100174
2007-01-01	318117238
2008-01-01	337111186
2009-01-01	292313901
2010-01-01	368679200
2011-01-01	374996348
2012-01-01	443594997
2013-01-01	481405968
2014-01-01	425403302
2015-01-01	393135479
2016-01-01	372976425