Year	Dollars
1992-01-01	102867585
1997-01-01	272670780
2002-01-01	492318693
2003-01-01	818522299
2004-01-01	605287494
2005-01-01	437314615
2006-01-01	474250774
2007-01-01	465380849
2008-01-01	430870269
2009-01-01	238476516
2010-01-01	227749183
2011-01-01	253177813
2012-01-01	280807736
2013-01-01	215254225
2014-01-01	223485648
2015-01-01	210753928
2016-01-01	273974319