Quarter	US Dollars, Sum Over Component Sub-periods
1994-01-01	232000000
1994-04-01	-105000000
1994-07-01	-10000000
1994-10-01	-3000000
1995-01-01	-1496000000
1995-04-01	-28000000
1995-07-01	-23000000
1995-10-01	-158000000
1996-01-01	140000000
1996-04-01	-73000000
1996-07-01	3000000
1996-10-01	-243000000
1997-01-01	187000000
1997-04-01	-42000000
1997-07-01	-305000000
1997-10-01	4000000
1998-01-01	-99000000
1998-04-01	-506000000
1998-07-01	350000000
1998-10-01	-3000000
1999-01-01	-23000000
1999-04-01	-202000000
1999-07-01	306000000
1999-10-01	172000000
2000-01-01	37000000
2000-04-01	9000000
2000-07-01	-323000000
2000-10-01	-135000000
2001-01-01	315000000
2001-04-01	-17000000
2001-07-01	60000000
2001-10-01	-282000000
2002-01-01	77000000
2002-04-01	-328000000
2002-07-01	35000000
2002-10-01	-579000000
2003-01-01	-1423000000
2003-04-01	63000000
2003-07-01	-1088000000
2003-10-01	267000000
2004-01-01	-1317000000
2004-04-01	-1655000000
2004-07-01	971000000
2004-10-01	-1819000000
2005-01-01	-3664000000
2005-04-01	-1986000000
2005-07-01	-1204000000
2005-10-01	-3812000000
2006-01-01	-6700000000
2006-04-01	3952000000
2006-07-01	4620000000
2006-10-01	4375000000
2007-01-01	-857000000
2007-04-01	-2788000000
2007-07-01	-1646000000
2007-10-01	-4701000000
2008-01-01	-461000000
2008-04-01	-1931000000
2008-07-01	-584000000
2008-10-01	-4868000000
2009-01-01	-5887000000
2009-04-01	-4479000000
2009-07-01	-1494000000
2009-10-01	1485000000
2010-01-01	1416000000
2010-04-01	946000000
2010-07-01	1081000000
2010-10-01	-6914000000
2011-01-01	610000000
2011-04-01	-5258000000
2011-07-01	-3609000000
2011-10-01	-2320000000
2012-01-01	1565000000
2012-04-01	-441000000