Quarterly US Dollars, Sum Over Component Sub-periods
1980-01-01 241000000
1980-04-01 -76000000
1980-07-01 -91000000
1980-10-01 -31000000
1981-01-01 142000000
1981-04-01 -81000000
1981-07-01 -352000000
1981-10-01 -484000000
1982-01-01 241000000
1982-04-01 -131000000
1982-07-01 -75000000
1982-10-01 -331000000
1983-01-01 216000000
1983-04-01 -112000000
1983-07-01 -96000000
1983-10-01 -245000000
1984-01-01 75000000
1984-04-01 -207000000
1984-07-01 -488000000
1984-10-01 -11000000
1985-01-01 -210000000
1985-04-01 -373000000
1985-07-01 -324000000
1985-10-01 -332000000
1986-01-01 -433000000
1986-04-01 92000000
1986-07-01 -109000000
1986-10-01 -453000000
1987-01-01 153000000
1987-04-01 -57000000
1987-07-01 -120000000
1987-10-01 -270000000
1988-01-01 74000000
1988-04-01 316000000
1988-07-01 73000000
1988-10-01 -31000000
1989-01-01 195000000
1989-04-01 205000000
1989-07-01 287000000
1989-10-01 -115000000
1990-01-01 365000000
1990-04-01 -94000000
1990-07-01 -160000000
1990-10-01 -955000000
1991-01-01 -777000000
1991-04-01 530000000
1991-07-01 -77000000
1991-10-01 -313000000
1992-01-01 -457000000
1992-04-01 259000000
1992-07-01 -524000000
1992-10-01 -269000000
1993-01-01 106000000
1993-04-01 -60000000
1993-07-01 1000000
1993-10-01 133000000
1994-01-01 878000000
1994-04-01 1411000000
1994-07-01 302000000
1994-10-01 -1123000000
1995-01-01 505000000
1995-04-01 -533000000
1995-07-01 232000000
1995-10-01 109000000
1996-01-01 436000000
1996-04-01 195000000
1996-07-01 333000000
1996-10-01 -48000000
1997-01-01 674000000
1997-04-01 195000000
1997-07-01 510000000
1997-10-01 839000000
1998-01-01 53000000
1998-04-01 -243000000
1998-07-01 98000000
1998-10-01 -1103000000
1999-01-01 -3097000000
1999-04-01 65000000
1999-07-01 -1649000000
1999-10-01 -178000000
2000-01-01 -966000000
2000-04-01 156000000
2000-07-01 -1503000000
2000-10-01 -1109000000
2001-01-01 2834000000
2001-04-01 459000000
2001-07-01 1412000000
2001-10-01 -1236000000
2002-01-01 1557000000
2002-04-01 579000000
2002-07-01 485000000
2002-10-01 160000000
2003-01-01 400000000
2003-04-01 977000000
2003-07-01 806000000
2003-10-01 946000000
2004-01-01 828000000
2004-04-01 98000000
2004-07-01 -1497000000
2004-10-01 1487000000
2005-01-01 -101000000
2005-04-01 2936000000
2005-07-01 1741000000
2005-10-01 252000000
2006-01-01 4710000000
2006-04-01 -1019000000
2006-07-01 -1856000000
2006-10-01 1204000000
2007-01-01 -495000000
2007-04-01 -2507000000
2007-07-01 -633000000
2007-10-01 126000000
2008-01-01 -2262000000
2008-04-01 358000000
2008-07-01 689000000
2008-10-01 -1797000000
2009-01-01 -1069000000
2009-04-01 -594000000
2009-07-01 2362000000
2009-10-01 1350000000
2010-01-01 -1079000000
2010-04-01 3304000000
2010-07-01 23000000
2010-10-01 845000000
2011-01-01 704000000
2011-04-01 -2539000000
2011-07-01 3615000000
2011-10-01 5474000000
2012-01-01 1660000000
2012-04-01 3486000000
2012-07-01 160000000
2012-10-01 -894000000
2013-01-01 -1456000000
2013-04-01 -1530000000
2013-07-01 1783000000
2013-10-01 2616000000
2014-01-01 -1430000000
2014-04-01 636000000
2014-07-01 1098000000