Quarter	US Dollars, Sum Over Component Sub-periods
1984-01-01	772000000
1984-04-01	737000000
1984-07-01	68000000
1984-10-01	968000000
1985-01-01	-207000000
1985-04-01	556000000
1985-07-01	924000000
1985-10-01	-9000000
1986-01-01	215000000
1986-04-01	708000000
1986-07-01	532000000
1986-10-01	333000000
1987-01-01	399000000
1987-04-01	251000000
1987-07-01	368000000
1987-10-01	987000000
1988-01-01	-315000000
1988-04-01	-128000000
1988-07-01	-615000000
1988-10-01	-436000000
1989-01-01	-643000000
1989-04-01	-915000000
1989-07-01	-617000000
1989-10-01	295000000
1990-01-01	741000000
1990-04-01	394000000
1990-07-01	1451000000
1990-10-01	565000000
1991-01-01	-638000000
1991-04-01	-18000000
1991-07-01	-445000000
1991-10-01	-139000000
1992-01-01	4000000
1992-04-01	721000000
1992-07-01	867000000
1992-10-01	1304000000
1993-01-01	170000000
1993-04-01	2580000000
1993-07-01	2302000000
1993-10-01	2603000000
1994-01-01	-2708000000
1994-04-01	-3065000000
1994-07-01	-1506000000
1994-10-01	-778000000
1995-01-01	961000000
1995-04-01	1675000000
1995-07-01	1466000000
1995-10-01	184000000
1996-01-01	380000000
1996-04-01	2582000000
1996-07-01	-13000000
1996-10-01	1021000000
1997-01-01	-348000000
1997-04-01	2589000000
1997-07-01	2478000000
1997-10-01	1784000000
1998-01-01	1041000000
1998-04-01	3647000000
1998-07-01	1627000000
1998-10-01	216000000
1999-01-01	-52000000
1999-04-01	-502000000
1999-07-01	1477000000
1999-10-01	3163000000
2000-01-01	1784000000
2000-04-01	2509000000
2000-07-01	3200000000
2000-10-01	6247000000
2001-01-01	-981000000
2001-04-01	-859000000
2001-07-01	1201000000
2001-10-01	-1427000000
2002-01-01	2372000000
2002-04-01	1859000000
2002-07-01	2442000000
2002-10-01	1295000000
2003-01-01	144000000
2003-04-01	82000000
2003-07-01	3093000000
2003-10-01	1092000000
2004-01-01	1754000000
2004-04-01	3702000000
2004-07-01	4259000000
2004-10-01	1424000000
2005-01-01	163000000
2005-04-01	6592000000
2005-07-01	4123000000
2005-10-01	4603000000
2006-01-01	9754000000
2006-04-01	6176000000
2006-07-01	2963000000
2006-10-01	6088000000
2007-01-01	2545000000
2007-04-01	10383000000
2007-07-01	5524000000
2007-10-01	11047000000
2008-01-01	12732000000
2008-04-01	20646000000
2008-07-01	11895000000
2008-10-01	-8952000000
2009-01-01	-5202000000
2009-04-01	-3650000000
2009-07-01	-928000000
2009-10-01	714000000
2010-01-01	2896000000
2010-04-01	7548000000
2010-07-01	3915000000
2010-10-01	12302000000
2011-01-01	1015000000
2011-04-01	9639000000
2011-07-01	8107000000
2011-10-01	-1607000000
2012-01-01	5168000000
2012-04-01	12040000000
2012-07-01	-1052000000
2012-10-01	2916000000
2013-01-01	15138000000
2013-04-01	10103000000
2013-07-01	1826000000
2013-10-01	9637000000
2014-01-01	-1477000000
2014-04-01	6406000000