Quarterly US Dollars, Sum Over Component Sub-periods
1960-01-01 -14000000
1960-04-01 -27000000
1960-07-01 -7000000
1960-10-01 -12000000
1961-01-01 33000000
1961-04-01 -19000000
1961-07-01 41000000
1961-10-01 -43000000
1962-01-01 37000000
1962-04-01 -24000000
1962-07-01 12000000
1962-10-01 -15000000
1963-01-01 39000000
1963-04-01 22000000
1963-07-01 -70000000
1963-10-01 -72000000
1964-01-01 5000000
1964-04-01 -60000000
1964-07-01 -30000000
1964-10-01 -65000000
1965-01-01 54000000
1965-04-01 -39000000
1965-07-01 -31000000
1965-10-01 119000000
1966-01-01 -74000000
1966-04-01 56000000
1966-07-01 18000000
1966-10-01 -7000000
1967-01-01 -33000000
1967-04-01 13000000
1967-07-01 -8000000
1967-10-01 -73000000
1968-01-01 -43000000
1968-04-01 -90000000
1968-07-01 0
1968-10-01 -68000000
1969-01-01 1000000
1969-04-01 -41000000
1969-07-01 -30000000
1969-10-01 48000000
1970-01-01 -1000000
1970-04-01 23000000
1970-07-01 -19000000
1970-10-01 -27000000
1971-01-01 -65000000
1971-04-01 11000000
1971-07-01 -26000000
1971-10-01 -45000000
1972-01-01 -67000000
1972-04-01 -25000000
1972-07-01 -72000000
1972-10-01 -88000000
1973-01-01 51000000
1973-04-01 22000000
1973-07-01 -91000000
1973-10-01 -66000000
1974-01-01 -98000000
1974-04-01 108000000
1974-07-01 -19000000
1974-10-01 -219000000
1975-01-01 -143000000
1975-04-01 139000000
1975-07-01 126000000
1975-10-01 -563000000
1976-01-01 38000000
1976-04-01 -69000000
1976-07-01 -6000000
1976-10-01 -252000000
1977-01-01 -35000000
1977-04-01 -810000000
1977-07-01 393000000
1977-10-01 -1000000
1978-01-01 91000000
1978-04-01 234000000
1978-07-01 17000000
1978-10-01 90000000
1979-01-01 382000000
1979-04-01 35000000
1979-07-01 307000000
1979-10-01 -421000000
1980-01-01 113000000
1980-04-01 115000000
1980-07-01 -298000000
1980-10-01 -301000000
1981-01-01 213000000
1981-04-01 -129000000
1981-07-01 -303000000
1981-10-01 -108000000
1982-01-01 95000000
1982-04-01 231000000
1982-07-01 -84000000
1982-10-01 129000000
1983-01-01 -64000000
1983-04-01 -241000000
1983-07-01 -250000000
1983-10-01 -291000000
1984-01-01 264000000
1984-04-01 -300000000
1984-07-01 238000000
1984-10-01 171000000
1985-01-01 128000000
1985-04-01 278000000
1985-07-01 98000000
1985-10-01 0
1986-01-01 58000000
1986-04-01 128000000
1986-07-01 45000000
1986-10-01 -34000000
1987-01-01 -231000000
1987-04-01 -197000000
1987-07-01 13000000
1987-10-01 6000000
1988-01-01 -556000000
1988-04-01 -80000000
1988-07-01 41000000
1988-10-01 502000000
1989-01-01 -327000000
1989-04-01 157000000
1989-07-01 288000000
1989-10-01 -409000000
1990-01-01 -446000000
1990-04-01 436000000
1990-07-01 -188000000
1990-10-01 -376000000
1991-01-01 260000000
1991-04-01 -139000000
1991-07-01 1563000000
1991-10-01 -1055000000
1992-01-01 -506000000
1992-04-01 -7000000
1992-07-01 815000000
1992-10-01 882000000
1993-01-01 -1659000000
1993-04-01 79000000
1993-07-01 448000000
1993-10-01 163000000
1994-01-01 110000000
1994-04-01 1561000000
1994-07-01 790000000
1994-10-01 -858000000
1995-01-01 -836000000
1995-04-01 846000000
1995-07-01 1594000000
1995-10-01 -775000000
1996-01-01 -1064000000
1996-04-01 59000000
1996-07-01 -598000000
1996-10-01 -317000000
1997-01-01 264000000
1997-04-01 311000000
1997-07-01 -1034000000
1997-10-01 -836000000
1998-01-01 1704000000
1998-04-01 103000000
1998-07-01 -639000000
1998-10-01 216000000
1999-01-01 15000000
1999-04-01 481000000
1999-07-01 -901000000
1999-10-01 410000000
2000-01-01 313000000
2000-04-01 -68000000
2000-07-01 -295000000
2000-10-01 382000000
2001-01-01 -324000000
2001-04-01 207000000
2001-07-01 -420000000
2001-10-01 -179000000
2002-01-01 198000000
2002-04-01 -126000000
2002-07-01 -50000000
2002-10-01 -212000000
2003-01-01 188000000
2003-04-01 203000000
2003-07-01 363000000
2003-10-01 -283000000
2004-01-01 320000000
2004-04-01 298000000
2004-07-01 248000000
2004-10-01 -274000000
2005-01-01 335000000
2005-04-01 266000000
2005-07-01 -604000000
2005-10-01 -538000000
2006-01-01 358000000
2006-04-01 91000000
2006-07-01 157000000
2006-10-01 294000000
2007-01-01 426000000
2007-04-01 35000000
2007-07-01 269000000
2007-10-01 608000000
2008-01-01 404000000
2008-04-01 193000000
2008-07-01 1189000000
2008-10-01 -640000000
2009-01-01 323000000
2009-04-01 622000000
2009-07-01 -713000000
2009-10-01 -658000000
2010-01-01 -823000000
2010-04-01 -342000000
2010-07-01 -1224000000
2010-10-01 -1207000000
2011-01-01 -804000000
2011-04-01 -1292000000