Year	US Dollars, Sum Over Component Sub-periods
1962-01-01	-64700000
1963-01-01	-85400000
1964-01-01	23800000.00000000
1965-01-01	459200000
1966-01-01	349900000.00000000
1967-01-01	354400000
1968-01-01	763100000.00000000
1969-01-01	476600000
1970-01-01	787600000.00000000
1971-01-01	1120900000.00000000
1972-01-01	660000000.00000000
1973-01-01	54100000.00000000
1974-01-01	1318300000.00000000
1975-01-01	2440900000.00000000
1976-01-01	941900000.00000000
1977-01-01	-727600000.00000000
1978-01-01	-956600000.00000000
1979-01-01	-2716400000.00000000
1980-01-01	-1949200000.00000000
1981-01-01	3510400000.00000000
1982-01-01	3281400000.00000000
1983-01-01	1432000000.00000000
1984-01-01	1377800000.00000000
1985-01-01	-886100000.00000000
1986-01-01	223700000.00000000
1987-01-01	-620500000.00000000
1988-01-01	-871000000.00000000
1989-01-01	-267100000.00000003
1990-01-01	-104500000.00000000
1991-01-01	211600000.00000000
1992-01-01	-1178900000.00000000
1993-01-01	-2443100000.00000000
1994-01-01	-449300000.00000000
1995-01-01	-851300000.00000000
1996-01-01	-2401000000.00000000
1997-01-01	-1120500000.00000000
1998-01-01	-1741500000.00000000
1999-01-01	-500200000.00000000
2000-01-01	648800000.00000000
2001-01-01	854700000.00000000
2002-01-01	-484500000.00000000
2003-01-01	3324700000.00000000
2004-01-01	5617200000.00000000
2005-01-01	1639500000.00000000
2006-01-01	2089699999.99999980
2007-01-01	5017400000.00000000
2008-01-01	10528200000.00000000
2009-01-01	-803900000.00000000
2010-01-01	5047700000.00000000
2011-01-01	7413600000.00000000