Year	US Dollars, Sum Over Component Sub-periods
1980-01-01	-26100000.0000000
1981-01-01	-47500000.0000000
1982-01-01	-151300000.0000000
1983-01-01	-129900000.0000000
1984-01-01	-52100000.0000000
1985-01-01	-591000000.0000000
1986-01-01	-1226800000.0000000
1987-01-01	-514900000.0000000
1988-01-01	-642900000.0000000
1989-01-01	-597800000.0000000
1990-01-01	-1051599999.9999999
1991-01-01	-1488600000.0000000
1992-01-01	-1161500000.0000000
1993-01-01	-1340000000.0000000
1994-01-01	-2461100000.0000000
1995-01-01	-3552000000.0000000
1996-01-01	-4670100000.0000000
1997-01-01	-4449400000.0000000
1998-01-01	-4230200000.0000000
1999-01-01	-3795600000.0000000
2000-01-01	-4481500000.0000000
2001-01-01	-2195700000.0000000
2002-01-01	-3024200000.0000000
2003-01-01	-4135300000.0000000
2004-01-01	-5650800000.0000000
2005-01-01	-6366300000.0000000
2006-01-01	-11174600000.0000000
2007-01-01	-19719600000.0000000
2008-01-01	-20251300000.0000000
2009-01-01	-17197000000.0000000
2010-01-01	-23278400000.0000000
2011-01-01	-21246500000.0000000
2012-01-01	-24552800000.0000000
2013-01-01	-19864800000.0000000