Year	US Dollars, Sum Over Component Sub-periods
1971-01-01	1099170000.00000000
1972-01-01	1898310000.00000000
1973-01-01	2045660000.00000000
1974-01-01	2168720000.00000000
1975-01-01	671170000.00000000
1976-01-01	1319800000.00000000
1977-01-01	942470000.00000000
1978-01-01	1593900000.00000000
1979-01-01	1734990000.00000000
1980-01-01	342100000.00000000
1981-01-01	328880000.00000000
1982-01-01	754530000.00000000
1983-01-01	1711030000.00000000
1984-01-01	534320000.00000006
1985-01-01	875510000.00000000
1986-01-01	2318730000.00000000
1987-01-01	2114159999.99999980
1988-01-01	1163070000.00000000
1989-01-01	6928040000.00000000
1990-01-01	2962090000.00000000
1991-01-01	4729330000.00000000
1992-01-01	-2089000000.00000000
1993-01-01	368240000.00000000
1994-01-01	7133920000.00000000
1995-01-01	12025440000.00000000
1996-01-01	6573000000.00000000
1997-01-01	12244000000.00000000
1998-01-01	24597350000.00000000
1999-01-01	56079520000.00000000
2000-01-01	198332040000.00000000
2001-01-01	26434860000.00000000
2002-01-01	53597860000.00000000
2003-01-01	32399640000.00000000
2004-01-01	-10195160000.00000000
2005-01-01	47409470000.00000000
2006-01-01	55657090000.00000000
2007-01-01	80225090000.00000000
2008-01-01	8093150000.00000000
2009-01-01	23789720000.00000000
2010-01-01	65619570000.00001000
2011-01-01	59333870000.00000000
2012-01-01	13208170000.00000000
2013-01-01	26716040000.00000000