Year	Dollars
1992-01-01	12371367
1997-01-01	21080041
2002-01-01	47878347
2003-01-01	50221054
2004-01-01	82922335
2005-01-01	93775426
2006-01-01	103746106
2007-01-01	227406758
2008-01-01	223585799
2009-01-01	181801993
2010-01-01	163665307
2011-01-01	182822106
2012-01-01	186865171
2013-01-01	258002442
2014-01-01	284659438
2015-01-01	269062116
2016-01-01	267867961