Quarter	US Dollars, Sum Over Component Sub-periods
1980-01-01	-112000000
1980-04-01	-341000000
1980-07-01	-676000000
1980-10-01	251000000
1981-01-01	-63000000
1981-04-01	-628000000
1981-07-01	-643000000
1981-10-01	-26000000
1982-01-01	-214000000
1982-04-01	-764000000
1982-07-01	-1137000000
1982-10-01	-139000000
1983-01-01	-656000000
1983-04-01	-792000000
1983-07-01	-1220000000
1983-10-01	298000000
1984-01-01	-683000000
1984-04-01	-707000000
1984-07-01	-1077000000
1984-10-01	895000000
1985-01-01	-357000000
1985-04-01	-301000000
1985-07-01	553000000
1985-10-01	1094000000
1986-01-01	97000000
1986-04-01	200000000
1986-07-01	-50000000
1986-10-01	1056000000
1987-01-01	-404000000
1987-04-01	-626000000
1987-07-01	-999000000
1987-10-01	623000000
1988-01-01	-87000000
1988-04-01	-657000000
1988-07-01	-851000000
1988-10-01	765000000
1989-01-01	135000000
1989-04-01	-556000000
1989-07-01	-92000000
1989-10-01	728000000
1990-01-01	251000000
1990-04-01	-503000000
1990-07-01	-186000000
1990-10-01	609000000
1991-01-01	-185000000
1991-04-01	-270000000
1991-07-01	-724000000
1991-10-01	-86000000
1992-01-01	-300000000
1992-04-01	-147000000
1992-07-01	-841000000
1992-10-01	429000000
1993-01-01	-961000000
1993-04-01	-1231000000
1993-07-01	-603000000
1993-10-01	384000000
1994-01-01	-991000000
1994-04-01	-1749000000
1994-07-01	-992000000
1994-10-01	328000000
1995-01-01	-1605000000
1995-04-01	-1258000000
1995-07-01	-1417000000
1995-10-01	-510000000
1996-01-01	-1712000000
1996-04-01	-1736000000
1996-07-01	-1795000000
1996-10-01	95000000
1997-01-01	-1195000000
1997-04-01	-1232000000
1997-07-01	-1227000000
1997-10-01	446000000
1998-01-01	-644000000
1998-04-01	-224000000
1998-07-01	-919000000
1998-10-01	893000000
1999-01-01	-790000000
1999-04-01	-664000000
1999-07-01	-809000000
1999-10-01	559000000
2000-01-01	-535000000
2000-04-01	-477000000
2000-07-01	-568000000
2000-10-01	-258000000
2001-01-01	-576000000
2001-04-01	-1007000000
2001-07-01	-1285000000
2001-10-01	958000000
2002-01-01	-168000000
2002-04-01	-737000000
2002-07-01	-1050000000
2002-10-01	781000000
2003-01-01	592000000
2003-04-01	107000000
2003-07-01	-1052000000
2003-10-01	1117000000
2004-01-01	655000000
2004-04-01	517000000
2004-07-01	-503000000
2004-10-01	1660000000
2005-01-01	1179000000
2005-04-01	577000000
2005-07-01	349000000
2005-10-01	2198000000
2006-01-01	1867000000
2006-04-01	1849000000
2006-07-01	1072000000
2006-10-01	2103000000
2007-01-01	2095000000
2007-04-01	3762000000
2007-07-01	-567000000
2007-10-01	261000000
2008-01-01	1908000000
2008-04-01	620000000
2008-07-01	-193000000
2008-10-01	856000000
2009-01-01	2797000000
2009-04-01	2025000000
2009-07-01	-431000000
2009-10-01	3573000000
2010-01-01	2785000000
2010-04-01	2787000000
2010-07-01	1299000000
2010-10-01	981000000
2011-01-01	2264000000
2011-04-01	963000000
2011-07-01	86000000
2011-10-01	609000000
2012-01-01	-827000000
2012-04-01	984000000
2012-07-01	-25000000
2012-10-01	1974000000
2013-01-01	2360000000
2013-04-01	2177000000
2013-07-01	-795000000
2013-10-01	3152000000
2014-01-01	4617000000
2014-04-01	2328000000
2014-07-01	-655000000
2014-10-01	2736000000