Year	US Dollars, Sum Over Component Sub-periods
1994-01-01	-1513000000
1995-01-01	-8432000000
1996-01-01	-3828000000
1997-01-01	-3044000000
1998-01-01	-5927000000
1999-01-01	-159000000
2000-01-01	-617000000
2001-01-01	436000000
2002-01-01	-635000000
2003-01-01	-1195000000
2004-01-01	-790000000
2005-01-01	-8135000000
2006-01-01	-2480000000
2007-01-01	-13037000000
2008-01-01	1964000000
2009-01-01	-14742000000
2010-01-01	-15132000000
2011-01-01	-6283000000
2012-01-01	-11201000000
2013-01-01	-945000000