Year	US Dollars, Sum Over Component Sub-periods
1994-01-01	-232000000
1995-01-01	157000000
1996-01-01	72000000
1997-01-01	-356000000
1998-01-01	-337000000
1999-01-01	601000000
2000-01-01	69000000
2001-01-01	-817000000
2002-01-01	-750000000
2003-01-01	-385000000
2004-01-01	-850000000
2005-01-01	-1038000000
2006-01-01	-1537000000
2007-01-01	-3506000000
2008-01-01	-2765000000
2009-01-01	-2862000000
2010-01-01	-3600000000
2011-01-01	-3191000000