Year	US Dollars, Monthly Level
1980-01-01	-4430100000.000000
1981-01-01	-4852600000.000000
1982-01-01	6193100000.000000
1983-01-01	13286700000.000000
1984-01-01	12028700000.000000
1985-01-01	7130700000.000000
1986-01-01	3725200000.000000
1987-01-01	7189200000.000000
1988-01-01	272200000.000000
1989-01-01	-2595700000.000000
1990-01-01	-4433400000.000000
1991-01-01	-7279040000.000000
1992-01-01	-15933727000.000000
1993-01-01	-13480573000.000000
1994-01-01	-18463702000.000000
1995-01-01	7088487000.000000
1996-01-01	6530974000.000000
1997-01-01	623298000.000000
1998-01-01	-7833764000.000000
1999-01-01	-5612948000.000000
2000-01-01	-8337085999.999999
2001-01-01	-9616701000.000000
2002-01-01	-7632909000.000000
2003-01-01	-5779408000.000000
2004-01-01	-8811097000.000000
2005-01-01	-7586570000.000000
2006-01-01	-6133208000.000000
2007-01-01	-10073737000.000000
2008-01-01	-17260656000.000000
2009-01-01	-4681422000.000000
2010-01-01	-3008673000.000000
2011-01-01	-1409490000.000000
2012-01-01	18331000.000000
2013-01-01	-1195117000.000000
2014-01-01	-3065520000.000000
2015-01-01	-14682776000.000000
2016-01-01	-13117805000.000000
2017-01-01	-10968076000.000000