Year	Dollars
1992-01-01	1025036
1997-01-01	1977152
2002-01-01	20402814
2003-01-01	29877707
2004-01-01	81155371
2005-01-01	209904825
2006-01-01	183147685
2007-01-01	144403192
2008-01-01	190474387
2009-01-01	219853502
2010-01-01	584110646
2012-01-01	582798958
2013-01-01	489791420
2014-01-01	272739481
2015-01-01	217531290
2016-01-01	165311782