Quarter	US Dollars, Sum Over Component Sub-periods
1960-01-01	-19000000
1960-04-01	-17000000
1960-07-01	-26000000
1960-10-01	-28000000
1961-01-01	-30000000
1961-04-01	-28000000
1961-07-01	-48000000
1961-10-01	-28000000
1962-01-01	-39000000
1962-04-01	-31000000
1962-07-01	-54000000
1962-10-01	-46000000
1963-01-01	-44000000
1963-04-01	-37000000
1963-07-01	-52000000
1963-10-01	-55000000
1964-01-01	-47000000
1964-04-01	-48000000
1964-07-01	-53000000
1964-10-01	-63000000
1965-01-01	-61000000
1965-04-01	-61000000
1965-07-01	-61000000
1965-10-01	-75000000
1966-01-01	-63000000
1966-04-01	-75000000
1966-07-01	-57000000
1966-10-01	-74000000
1967-01-01	-71000000
1967-04-01	-67000000
1967-07-01	-68000000
1967-10-01	-70000000
1968-01-01	-74000000
1968-04-01	-68000000
1968-07-01	-66000000
1968-10-01	-91000000
1969-01-01	-81000000
1969-04-01	-62000000
1969-07-01	-71000000
1969-10-01	-111000000
1970-01-01	-81000000
1970-04-01	-64000000
1970-07-01	-69000000
1970-10-01	-121000000
1971-01-01	-83000000
1971-04-01	-72000000
1971-07-01	-76000000
1971-10-01	-125000000
1972-01-01	-87000000
1972-04-01	-85000000
1972-07-01	-81000000
1972-10-01	-106000000
1973-01-01	-112000000
1973-04-01	-79000000
1973-07-01	-89000000
1973-10-01	-129000000
1974-01-01	-106000000
1974-04-01	-52000000
1974-07-01	-42000000
1974-10-01	-113000000
1975-01-01	-103000000
1975-04-01	-56000000
1975-07-01	-52000000
1975-10-01	-46000000
1976-01-01	-44000000
1976-04-01	-32000000
1976-07-01	-46000000
1976-10-01	-38000000
1977-01-01	-35000000
1977-04-01	-65000000
1977-07-01	-20000000
1977-10-01	-29000000
1978-01-01	-7000000
1978-04-01	1000000
1978-07-01	-82000000
1978-10-01	-15000000
1979-01-01	49000000
1979-04-01	56000000
1979-07-01	50000000
1979-10-01	109000000
1980-01-01	102000000
1980-04-01	138000000
1980-07-01	194000000
1980-10-01	100000000
1981-01-01	153000000
1981-04-01	84000000
1981-07-01	125000000
1981-10-01	96000000
1982-01-01	62000000
1982-04-01	-15000000
1982-07-01	-67000000
1982-10-01	-62000000
1983-01-01	-174000000
1983-04-01	-46000000
1983-07-01	-195000000
1983-10-01	-87000000
1984-01-01	-218000000
1984-04-01	-51000000
1984-07-01	-290000000
1984-10-01	-120000000
1985-01-01	-378000000
1985-04-01	-52000000
1985-07-01	-288000000
1985-10-01	-101000000
1986-01-01	-369000000
1986-04-01	-119000000
1986-07-01	-330000000
1986-10-01	-245000000
1987-01-01	-335000000
1987-04-01	-191000000
1987-07-01	-382000000
1987-10-01	-249000000
1988-01-01	-584000000
1988-04-01	-314000000
1988-07-01	-546000000
1988-10-01	-340000000
1989-01-01	-600000000
1989-04-01	-279000000
1989-07-01	-708000000
1989-10-01	-466000000
1990-01-01	-594000000
1990-04-01	-790000000
1990-07-01	-922000000
1990-10-01	-951000000
1991-01-01	-1120000000
1991-04-01	-920000000
1991-07-01	-1027000000
1991-10-01	-936000000
1992-01-01	-974000000
1992-04-01	-858000000
1992-07-01	-1130000000
1992-10-01	-950000000
1993-01-01	-1091000000
1993-04-01	-900000000
1993-07-01	-941000000
1993-10-01	-814000000
1994-01-01	-905000000
1994-04-01	-918000000
1994-07-01	-917000000
1994-10-01	-809000000
1995-01-01	-1112000000
1995-04-01	-525000000
1995-07-01	-1309000000
1995-10-01	-788000000
1996-01-01	-757000000
1996-04-01	-727000000
1996-07-01	-898000000
1996-10-01	-874000000
1997-01-01	-1180000000
1997-04-01	-463000000
1997-07-01	-913000000
1997-10-01	-962000000
1998-01-01	-1183000000
1998-04-01	-500000000
1998-07-01	-912000000
1998-10-01	-1042000000
1999-01-01	-1089000000
1999-04-01	-811000000
1999-07-01	-1020000000
1999-10-01	-790000000
2000-01-01	-939000000
2000-04-01	-1879000000
2000-07-01	-992000000
2000-10-01	-1082000000
2001-01-01	-1051000000
2001-04-01	-1152000000
2001-07-01	-799000000
2001-10-01	-1139000000
2002-01-01	-1115000000
2002-04-01	-1009000000
2002-07-01	-600000000
2002-10-01	-1185000000
2003-01-01	-651000000
2003-04-01	-1164000000
2003-07-01	-717000000
2003-10-01	-2363000000
2004-01-01	-261000000
2004-04-01	-1056000000
2004-07-01	-1212000000
2004-10-01	-1523000000
2005-01-01	-1188000000
2005-04-01	-868000000
2005-07-01	-1578000000
2005-10-01	-3016000000
2006-01-01	-393000000
2006-04-01	-1935000000
2006-07-01	-2038000000
2006-10-01	-1879000000
2007-01-01	-1479000000
2007-04-01	-1987000000
2007-07-01	-1500000000
2007-10-01	-1550000000
2008-01-01	-31000000
2008-04-01	-1615000000
2008-07-01	-1561000000
2008-10-01	-2157000000
2009-01-01	-1776000000
2009-04-01	-2207000000
2009-07-01	-1072000000
2009-10-01	-2481000000
2010-01-01	-2280000000
2010-04-01	-2736000000
2010-07-01	-4044000000
2010-10-01	-3865000000
2011-01-01	-3854000000
2011-04-01	-4342000000