Quarter	US Dollars, Sum Over Component Sub-periods
1994-01-01	-67000000
1994-04-01	-41000000
1994-07-01	-40000000
1994-10-01	56000000
1995-01-01	-322000000
1995-04-01	-6000000
1995-07-01	-482000000
1995-10-01	72000000
1996-01-01	902000000
1996-04-01	1775000000
1996-07-01	-99000000
1996-10-01	2004000000
1997-01-01	5903000000
1997-04-01	8062000000
1997-07-01	2347000000
1997-10-01	29620000000
1998-01-01	4337000000
1998-04-01	4406000000
1998-07-01	578000000
1998-10-01	-445000000
1999-01-01	127000000
1999-04-01	-372000000
1999-07-01	-373000000
1999-10-01	-582000000
2000-01-01	583000000
2000-04-01	-1530000000
2000-07-01	-8541000000
2000-10-01	-435000000
2001-01-01	-122000000
2001-04-01	2000000
2001-07-01	-361000000
2001-10-01	-249000000
2002-01-01	512000000
2002-04-01	188000000
2002-07-01	628000000
2002-10-01	2428000000
2003-01-01	-1786000000
2003-04-01	-2733000000
2003-07-01	-1148000000
2003-10-01	3339000000
2004-01-01	3796000000
2004-04-01	28000000
2004-07-01	-274000000
2004-10-01	893000000
2005-01-01	461000000
2005-04-01	4059000000
2005-07-01	-2508000000
2005-10-01	-2725000000
2006-01-01	1969000000
2006-04-01	-269000000
2006-07-01	10313000000
2006-10-01	-2559000000
2007-01-01	-229000000
2007-04-01	8584000000
2007-07-01	-1905000000
2007-10-01	9095000000
2008-01-01	-4619000000
2008-04-01	2330000000
2008-07-01	-9076000000
2008-10-01	-16229000000
2009-01-01	-4011000000
2009-04-01	4095000000
2009-07-01	3156000000
2009-10-01	4954000000
2010-01-01	910000000
2010-04-01	5583000000
2010-07-01	-642000000
2010-10-01	-4041000000
2011-01-01	4952000000
2011-04-01	-945000000
2011-07-01	-8402000000
2011-10-01	-2885000000
2012-01-01	5436000000
2012-04-01	586000000