Year	US Dollars, Sum Over Component Sub-periods
1994-01-01	-10719000000
1995-01-01	2041000000
1996-01-01	-3132000000
1997-01-01	9657000000
1998-01-01	9525000000
1999-01-01	-15807000000
2000-01-01	-48504000000
2001-01-01	-15029000000
2002-01-01	-10651000000
2003-01-01	-25243000000
2004-01-01	-52014000000
2005-01-01	-63925000000
2006-01-01	-104395000000
2007-01-01	-54197000000
2008-01-01	-92749000000
2009-01-01	-35010000000
2010-01-01	-62868000000
2011-01-01	-88724000000