Quarter	US Dollars, Sum Over Component Sub-periods
1981-01-01	-714000000
1981-04-01	179000000
1981-07-01	272000000
1981-10-01	637000000
1982-01-01	-243000000
1982-04-01	1742000000
1982-07-01	359000000
1982-10-01	-5000000
1983-01-01	1191000000
1983-04-01	-767000000
1983-07-01	-782000000
1983-10-01	-275000000
1984-01-01	-334000000
1984-04-01	-272000000
1984-07-01	-326000000
1984-10-01	-45000000
1985-01-01	-172000000
1985-04-01	40000000
1985-07-01	7000000
1985-10-01	-1000000
1986-01-01	55000000
1986-04-01	46000000
1986-07-01	232000000
1986-10-01	669000000
1987-01-01	-23000000
1987-04-01	-184000000
1987-07-01	-838000000
1987-10-01	-188000000
1988-01-01	-227000000
1988-04-01	231000000
1988-07-01	268000000
1988-10-01	-105000000
1989-01-01	126000000
1989-04-01	223000000
1989-07-01	241000000
1989-10-01	-1085000000
1990-01-01	305000000
1990-04-01	489000000
1990-07-01	-741000000
1990-10-01	-2141000000
1991-01-01	-901000000
1991-04-01	-199000000
1991-07-01	462000000
1991-10-01	-571000000
1992-01-01	-673000000
1992-04-01	-809000000
1992-07-01	-225000000
1992-10-01	-200000000
1993-01-01	-208000000
1993-04-01	-135000000
1993-07-01	-48000000
1993-10-01	-204000000
1994-01-01	-340000000
1994-04-01	989000000
1994-07-01	-700000000
1994-10-01	-733000000
1995-01-01	-123000000
1995-04-01	-581000000
1995-07-01	-436000000
1995-10-01	-433000000
1996-01-01	-1332000000
1996-04-01	-529000000
1996-07-01	69000000
1996-10-01	-2711000000
1997-01-01	-746000000
1997-04-01	-2242000000
1997-07-01	1290000000
1997-10-01	6810000000
1998-01-01	4911000000
1998-04-01	-2076000000
1998-07-01	-1950000000
1998-10-01	-3230000000
1999-01-01	-1975000000
1999-04-01	-767000000
1999-07-01	-370000000
1999-10-01	-175000000
2000-01-01	-2812000000
2000-04-01	-372000000
2000-07-01	-564000000
2000-10-01	-1301000000
2001-01-01	715000000
2001-04-01	20000000
2001-07-01	-301000000
2001-10-01	936000000
2002-01-01	13000000
2002-04-01	-1202000000
2002-07-01	-694000000
2002-10-01	-2127000000
2003-01-01	-536000000
2003-04-01	-1471000000
2003-07-01	-11000000
2003-10-01	-2218000000
2004-01-01	-1096000000
2004-04-01	2112000000
2004-07-01	282000000
2004-10-01	-612000000
2005-01-01	-53000000
2005-04-01	1729000000
2005-07-01	3483000000
2005-10-01	-4501000000
2006-01-01	-5360000000
2006-04-01	353000000
2006-07-01	-2189000000
2006-10-01	292000000
2007-01-01	-4377000000
2007-04-01	-3634000000
2007-07-01	-1177000000
2007-10-01	-3518000000
2008-01-01	-1032000000
2008-04-01	-1324000000
2008-07-01	89000000
2008-10-01	4212000000
2009-01-01	-3955000000
2009-04-01	-1052000000
2009-07-01	-3546000000
2009-10-01	-3954000000
2010-01-01	-6621000000
2010-04-01	-5421000000
2010-07-01	-6955000000
2010-10-01	-11289000000
2011-01-01	-7666000000
2011-04-01	-11876000000
2011-07-01	3960000000
2011-10-01	3726000000
2012-01-01	1034000000
2012-04-01	2811000000
2012-07-01	-834000000
2012-10-01	-3225000000
2013-01-01	6615000000
2013-04-01	2477000000
2013-07-01	2645000000
2013-10-01	-4412000000