Quarterly US Dollars, Sum Over Component Sub-periods
1960-01-01 32000000
1960-04-01 42000000
1960-07-01 22000000
1960-10-01 49000000
1961-01-01 6000000
1961-04-01 14000000
1961-07-01 19000000
1961-10-01 12000000
1962-01-01 16000000
1962-04-01 4000000
1962-07-01 40000000
1962-10-01 17000000
1963-01-01 28000000
1963-04-01 31000000
1963-07-01 33000000
1963-10-01 49000000
1964-01-01 29000000
1964-04-01 75000000
1964-07-01 37000000
1964-10-01 35000000
1965-01-01 46000000
1965-04-01 13000000
1965-07-01 9000000
1965-10-01 25000000
1966-01-01 40000000
1966-04-01 46000000
1966-07-01 29000000
1966-10-01 34000000
1967-01-01 26000000
1967-04-01 39000000
1967-07-01 23000000
1967-10-01 32000000
1968-01-01 15000000
1968-04-01 34000000
1968-07-01 20000000
1968-10-01 22000000
1969-01-01 9000000
1969-04-01 16000000
1969-07-01 10000000
1969-10-01 15000000
1970-01-01 0
1970-04-01 7000000
1970-07-01 2000000
1970-10-01 -6000000
1971-01-01 7000000
1971-04-01 14000000
1971-07-01 -9000000
1971-10-01 19000000
1972-01-01 10000000
1972-04-01 23000000
1972-07-01 10000000
1972-10-01 15000000
1973-01-01 13000000
1973-04-01 21000000
1973-07-01 21000000
1973-10-01 14000000
1974-01-01 30000000
1974-04-01 57000000
1974-07-01 32000000
1974-10-01 88000000
1975-01-01 -51000000
1975-04-01 -63000000
1975-07-01 -82000000
1975-10-01 -18000000
1976-01-01 -9000000
1976-04-01 18000000
1976-07-01 -97000000
1976-10-01 4000000
1977-01-01 -34000000
1977-04-01 35000000
1977-07-01 -16000000
1977-10-01 46000000
1978-01-01 50000000
1978-04-01 26000000
1978-07-01 24000000
1978-10-01 -49000000
1979-01-01 -52000000
1979-04-01 20000000
1979-07-01 -31000000
1979-10-01 26000000
1980-01-01 -68000000
1980-04-01 -49000000
1980-07-01 69000000
1980-10-01 38000000
1981-01-01 -179000000
1981-04-01 -39000000
1981-07-01 -114000000
1981-10-01 -120000000
1982-01-01 -199000000
1982-04-01 -70000000
1982-07-01 -110000000
1982-10-01 -160000000
1983-01-01 -174000000
1983-04-01 129000000
1983-07-01 -96000000
1983-10-01 -274000000
1984-01-01 -192000000
1984-04-01 -32000000
1984-07-01 -47000000
1984-10-01 -140000000
1985-01-01 -218000000
1985-04-01 -293000000
1985-07-01 11000000
1985-10-01 -20000000
1986-01-01 -203000000
1986-04-01 -314000000
1986-07-01 -142000000
1986-10-01 -57000000
1987-01-01 -213000000
1987-04-01 -308000000
1987-07-01 -388000000
1987-10-01 -357000000
1988-01-01 -309000000
1988-04-01 -484000000
1988-07-01 -332000000
1988-10-01 -406000000
1989-01-01 -317000000
1989-04-01 -654000000
1989-07-01 -424000000
1989-10-01 -338000000
1990-01-01 -248000000
1990-04-01 -383000000
1990-07-01 -385000000
1990-10-01 -448000000
1991-01-01 -540000000
1991-04-01 -572000000
1991-07-01 -298000000
1991-10-01 391000000
1992-01-01 -384000000
1992-04-01 -843000000
1992-07-01 -533000000
1992-10-01 -42000000
1993-01-01 -130000000
1993-04-01 -540000000
1993-07-01 -476000000
1993-10-01 -243000000
1994-01-01 -424000000
1994-04-01 -495000000
1994-07-01 -647000000
1994-10-01 -596000000
1995-01-01 -718000000
1995-04-01 -858000000
1995-07-01 -1024000000
1995-10-01 -892000000
1996-01-01 -1408000000
1996-04-01 -1354000000
1996-07-01 -521000000
1996-10-01 -650000000
1997-01-01 -878000000
1997-04-01 -1009000000
1997-07-01 -1008000000
1997-10-01 -437000000
1998-01-01 -1078000000
1998-04-01 -768000000
1998-07-01 -611000000
1998-10-01 -392000000
1999-01-01 -787000000
1999-04-01 -802000000
1999-07-01 -961000000
1999-10-01 -212000000
2000-01-01 577000000
2000-04-01 -1774000000
2000-07-01 -844000000
2000-10-01 -462000000
2001-01-01 -959000000
2001-04-01 -416000000
2001-07-01 -1383000000
2001-10-01 -4000000
2002-01-01 -437000000
2002-04-01 -805000000
2002-07-01 -719000000
2002-10-01 400000000
2003-01-01 -1617000000
2003-04-01 -188000000
2003-07-01 -492000000
2003-10-01 1320000000
2004-01-01 1624000000
2004-04-01 1406000000
2004-07-01 -627000000
2004-10-01 237000000
2005-01-01 2739000000
2005-04-01 383000000
2005-07-01 1510000000
2005-10-01 608000000
2006-01-01 5101000000
2006-04-01 2938000000
2006-07-01 1606000000
2006-10-01 1390000000
2007-01-01 4603000000
2007-04-01 3397000000
2007-07-01 3461000000
2007-10-01 4662000000
2008-01-01 1704000000
2008-04-01 3070000000
2008-07-01 6269000000
2008-10-01 7739000000
2009-01-01 6225000000
2009-04-01 4946000000
2009-07-01 412000000
2009-10-01 404000000
2010-01-01 98000000
2010-04-01 1224000000
2010-07-01 3134000000
2010-10-01 2465000000
2011-01-01 14508000000
2011-04-01 12068000000