Year	US Dollars, Sum Over Component Sub-periods
1975-01-01	2375650000.000000
1976-01-01	838870000.000000
1977-01-01	453990000.000000
1978-01-01	-760120000.000000
1979-01-01	209550000.000000
1980-01-01	1216430000.000000
1981-01-01	335660000.000000
1982-01-01	953720000.000000
1983-01-01	1042810000.000000
1984-01-01	543750000.000000
1985-01-01	884710000.000000
1986-01-01	218110000.000000
1987-01-01	3140290000.000000
1988-01-01	1843580000.000000
1989-01-01	4528500000.000000
1990-01-01	8567379999.999999
1991-01-01	6049880000.000000
1992-01-01	4977060000.000000
1993-01-01	50930000.000000
1994-01-01	-491790000.000000
1995-01-01	-3968710000.000000
1996-01-01	-4767210000.000000
1997-01-01	-5264660000.000000
1998-01-01	-1949930000.000000
1999-01-01	-6493970000.000000
2000-01-01	-9017310000.000000
2001-01-01	-11346700000.000000
2002-01-01	-6917250000.000000
2003-01-01	-8464940000.000001
2004-01-01	-10322360000.000000
2005-01-01	-3486020000.000000
2006-01-01	-4861820000.000000
2007-01-01	364720000.000000
2008-01-01	6330570000.000000
2009-01-01	6740760000.000000
2010-01-01	-4676550000.000000
2011-01-01	11897230000.000000
2012-01-01	21430420000.000000
2013-01-01	-2546140000.000000