Quarter	US Dollars, Sum Over Component Sub-periods
1992-01-01	1302000000
1992-04-01	-515000000
1992-07-01	191000000
1992-10-01	-1102000000
1993-01-01	804000000
1993-04-01	-1516000000
1993-07-01	206000000
1993-10-01	-939000000
1994-01-01	719000000
1994-04-01	-1465000000
1994-07-01	-652000000
1994-10-01	-500000000
1995-01-01	264000000
1995-04-01	-3154000000
1995-07-01	-1567000000
1995-10-01	-2562000000
1996-01-01	-65000000
1996-04-01	-3011000000
1996-07-01	-1995000000
1996-10-01	-1640000000
1997-01-01	-591000000
1997-04-01	-2118000000
1997-07-01	-1602000000
1997-10-01	-791000000
1998-01-01	-4000000
1998-04-01	-1484000000
1998-07-01	-1167000000
1998-10-01	-860000000
1999-01-01	53000000
1999-04-01	-1845000000
1999-07-01	-1262000000
1999-10-01	-434000000
2000-01-01	889000000
2000-04-01	-1236000000
2000-07-01	-658000000
2000-10-01	-330000000
2001-01-01	448000000
2001-04-01	-1679000000
2001-07-01	-312000000
2001-10-01	30000000
2002-01-01	2734000000
2002-04-01	-6000000
2002-07-01	976000000
2002-10-01	1768000000
2003-01-01	2965000000
2003-04-01	-398000000
2003-07-01	137000000
2003-10-01	1487000000
2004-01-01	4271000000
2004-04-01	653000000
2004-07-01	348000000
2004-10-01	1179000000
2005-01-01	4515000000
2005-04-01	-59000000
2005-07-01	-224000000
2005-10-01	2493000000
2006-01-01	4369000000
2006-04-01	18000000
2006-07-01	155000000
2006-10-01	4502000000
2007-01-01	5563000000
2007-04-01	2149000000
2007-07-01	34000000
2007-10-01	5444000000
2008-01-01	9262000000
2008-04-01	2696000000
2008-07-01	3603000000
2008-10-01	4526000000
2009-01-01	5030000000
2009-04-01	543000000
2009-07-01	1057000000
2009-10-01	3667000000
2010-01-01	6102000000
2010-04-01	1663000000
2010-07-01	1424000000
2010-10-01	3962000000
2011-01-01	3726000000
2011-04-01	-140000000
2011-07-01	-738000000
2011-10-01	3767000000
2012-01-01	3212000000
2012-04-01	21000000
2012-07-01	717000000
2012-10-01	3308000000
2013-01-01	5610000000
2013-04-01	1489000000
2013-07-01	574000000
2013-10-01	3570000000
2014-01-01	3192000000