Year	US Dollars, Sum Over Component Sub-periods
1994-01-01	465000000
1995-01-01	-8657000000
1996-01-01	-7252000000
1997-01-01	-8780000000
1998-01-01	-9361000000
1999-01-01	-8481000000
2000-01-01	-9290000000
2001-01-01	-9550000000
2002-01-01	-6077000000
2003-01-01	-9174000000
2004-01-01	-5874000000
2005-01-01	-7913000000
2006-01-01	9518000000
2007-01-01	-13347000000
2008-01-01	-11277000000
2009-01-01	-1726000000
2010-01-01	-8285000000
2011-01-01	-9990000000