Quarter	US Dollars, Sum Over Component Sub-periods
1960-01-01	-161000000
1960-04-01	-201000000
1960-07-01	-202000000
1960-10-01	-168000000
1961-01-01	-251000000
1961-04-01	-172000000
1961-07-01	-186000000
1961-10-01	-88000000
1962-01-01	-196000000
1962-04-01	-234000000
1962-07-01	-172000000
1962-10-01	-172000000
1963-01-01	-164000000
1963-04-01	-215000000
1963-07-01	-154000000
1963-10-01	-132000000
1964-01-01	-229000000
1964-04-01	-185000000
1964-07-01	-155000000
1964-10-01	-352000000
1965-01-01	-284000000
1965-04-01	-342000000
1965-07-01	-344000000
1965-10-01	-371000000
1966-01-01	-10000000
1966-04-01	-361000000
1966-07-01	-283000000
1966-10-01	-298000000
1967-01-01	-282000000
1967-04-01	-327000000
1967-07-01	-295000000
1967-10-01	-208000000
1968-01-01	-238000000
1968-04-01	-235000000
1968-07-01	-107000000
1968-10-01	-133000000
1969-01-01	-65000000
1969-04-01	-8000000
1969-07-01	-105000000
1969-10-01	-95000000
1970-01-01	-102000000
1970-04-01	-115000000
1970-07-01	-127000000
1970-10-01	-135000000
1971-01-01	-213000000
1971-04-01	-170000000
1971-07-01	-196000000
1971-10-01	-136000000
1972-01-01	-166000000
1972-04-01	-62000000
1972-07-01	-77000000
1972-10-01	-46000000
1973-01-01	-216000000
1973-04-01	-64000000
1973-07-01	-28000000
1973-10-01	-362000000
1974-01-01	1793000000
1974-04-01	-460000000
1974-07-01	-348000000
1974-10-01	-125000000
1975-01-01	-189000000
1975-04-01	-139000000
1975-07-01	-241000000
1975-10-01	421000000
1976-01-01	270000000
1976-04-01	699000000
1976-07-01	215000000
1976-10-01	395000000
1977-01-01	396000000
1977-04-01	958000000
1977-07-01	373000000
1977-10-01	392000000
1978-01-01	284000000
1978-04-01	120000000
1978-07-01	432000000
1978-10-01	-144000000
1979-01-01	-44000000
1979-04-01	208000000
1979-07-01	-169000000
1979-10-01	56000000
1980-01-01	-400000000
1980-04-01	-711000000
1980-07-01	-248000000
1980-10-01	-426000000
1981-01-01	-702000000
1981-04-01	-479000000
1981-07-01	-448000000
1981-10-01	-1069000000
1982-01-01	-582000000
1982-04-01	-684000000
1982-07-01	-484000000
1982-10-01	-774000000
1983-01-01	-448000000
1983-04-01	-243000000
1983-07-01	-385000000
1983-10-01	-861000000
1984-01-01	-671000000
1984-04-01	-143000000
1984-07-01	-621000000
1984-10-01	-875000000
1985-01-01	-726000000
1985-04-01	-1655000000
1985-07-01	-764000000
1985-10-01	-996000000
1986-01-01	-1396000000
1986-04-01	-1431000000
1986-07-01	-905000000
1986-10-01	-836000000
1987-01-01	-1393000000
1987-04-01	-1070000000
1987-07-01	-1215000000
1987-10-01	-1493000000
1988-01-01	-1069000000
1988-04-01	-1812000000
1988-07-01	-1717000000
1988-10-01	-2545000000
1989-01-01	-1129000000
1989-04-01	-2329000000
1989-07-01	-2170000000
1989-10-01	-1185000000
1990-01-01	-278000000
1990-04-01	-1684000000
1990-07-01	-2256000000
1990-10-01	-2818000000
1991-01-01	-2866000000
1991-04-01	-1436000000
1991-07-01	-1655000000
1991-10-01	1665000000
1992-01-01	256000000
1992-04-01	-1952000000
1992-07-01	-1699000000
1992-10-01	-1090000000
1993-01-01	-172000000
1993-04-01	-892000000
1993-07-01	-657000000
1993-10-01	-155000000
1994-01-01	545000000
1994-04-01	-353000000
1994-07-01	-1050000000
1994-10-01	-818000000
1995-01-01	-1149000000
1995-04-01	-1351000000
1995-07-01	-2105000000
1995-10-01	-958000000
1996-01-01	-1483000000
1996-04-01	-2213000000
1996-07-01	-1008000000
1996-10-01	-1252000000
1997-01-01	-23000000
1997-04-01	-1361000000
1997-07-01	179000000
1997-10-01	-1760000000
1998-01-01	-2559000000
1998-04-01	-2133000000
1998-07-01	-1005000000
1998-10-01	-1205000000
1999-01-01	307000000
1999-04-01	-1567000000
1999-07-01	-998000000
1999-10-01	-969000000
2000-01-01	-1162000000
2000-04-01	-2563000000
2000-07-01	-1631000000
2000-10-01	755000000
2001-01-01	773000000
2001-04-01	1127000000
2001-07-01	-965000000
2001-10-01	475000000
2002-01-01	2763000000
2002-04-01	1129000000
2002-07-01	1815000000
2002-10-01	1353000000
2003-01-01	2047000000
2003-04-01	-422000000
2003-07-01	3185000000
2003-10-01	3962000000
2004-01-01	7357000000
2004-04-01	3607000000
2004-07-01	-4430000000
2004-10-01	-5754000000
2005-01-01	4107000000
2005-04-01	-4793000000
2005-07-01	-4684000000
2005-10-01	-4913000000
2006-01-01	4489000000
2006-04-01	-4438000000
2006-07-01	-5747000000
2006-10-01	-3603000000
2007-01-01	4223000000
2007-04-01	-4531000000
2007-07-01	-4257000000
2007-10-01	-3510000000
2008-01-01	-3438000000
2008-04-01	-3400000000
2008-07-01	-12264000000
2008-10-01	-11870000000
2009-01-01	-380000000
2009-04-01	-4165000000
2009-07-01	-9174000000
2009-10-01	-12202000000
2010-01-01	-12841000000
2010-04-01	-12468000000
2010-07-01	-16790000000
2010-10-01	-9682000000
2011-01-01	-5404000000
2011-04-01	-14206000000