Quarter	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