Quarter	US Dollars, Sum Over Component Sub-periods
1980-01-01	-26000000
1980-04-01	38000000
1980-07-01	13000000
1980-10-01	108000000
1981-01-01	97000000
1981-04-01	-36000000
1981-07-01	100000000
1981-10-01	-136000000
1982-01-01	33000000
1982-04-01	-91000000
1982-07-01	51000000
1982-10-01	-8000000
1983-01-01	-91000000
1983-04-01	158000000
1983-07-01	-52000000
1983-10-01	531000000
1984-01-01	-31000000
1984-04-01	186000000
1984-07-01	255000000
1984-10-01	425000000
1985-01-01	266000000
1985-04-01	511000000
1985-07-01	463000000
1985-10-01	497000000
1986-01-01	407000000
1986-04-01	33000000
1986-07-01	-189000000
1986-10-01	-584000000
1987-01-01	-159000000
1987-04-01	95000000
1987-07-01	-61000000
1987-10-01	-173000000
1988-01-01	-457000000
1988-04-01	-219000000
1988-07-01	72000000
1988-10-01	-3000000
1989-01-01	-47000000
1989-04-01	-71000000
1989-07-01	17000000
1989-10-01	99000000
1990-01-01	43000000
1990-04-01	236000000
1990-07-01	203000000
1990-10-01	180000000
1991-01-01	750000000
1991-04-01	1211000000
1991-07-01	291000000
1991-10-01	654000000
1992-01-01	1922000000
1992-04-01	567000000
1992-07-01	1082000000
1992-10-01	2303000000
1993-01-01	1674000000
1993-04-01	2768000000
1993-07-01	1662000000
1993-10-01	4985000000
1994-01-01	1444000000
1994-04-01	2131000000
1994-07-01	2614000000
1994-10-01	2524000000
1995-01-01	1868000000
1995-04-01	3509000000
1995-07-01	5702000000
1995-10-01	3540000000
1996-01-01	3139000000
1996-04-01	6632000000
1996-07-01	5197000000
1996-10-01	6547000000
1997-01-01	3051000000
1997-04-01	6306000000
1997-07-01	5609000000
1997-10-01	-1657000000
1998-01-01	2988000000
1998-04-01	2028000000
1998-07-01	-3596000000
1998-10-01	-645000000
1999-01-01	1338000000
1999-04-01	3905000000
1999-07-01	-2099000000
1999-10-01	4763000000
2000-01-01	8638000000
2000-04-01	2033000000
2000-07-01	988000000
2000-10-01	1038000000
2001-01-01	2016000000
2001-04-01	3364000000
2001-07-01	333000000
2001-10-01	6515000000
2002-01-01	-1262000000
2002-04-01	-1370000000
2002-07-01	1927000000
2002-10-01	6083000000
2003-01-01	130000000
2003-04-01	5602000000
2003-07-01	8412000000
2003-10-01	8547000000
2004-01-01	12196000000
2004-04-01	2169000000
2004-07-01	3482000000
2004-10-01	528000000
2005-01-01	2001000000
2005-04-01	1539000000
2005-07-01	4901000000
2005-10-01	5673000000
2006-01-01	7996000000
2006-04-01	-2606000000
2006-07-01	-1758000000
2006-10-01	4424000000
2007-01-01	5228000000
2007-04-01	13312000000
2007-07-01	-1777000000
2007-10-01	13615000000
2008-01-01	-4066000000
2008-04-01	8189000000
2008-07-01	-15126000000
2008-10-01	-14887000000
2009-01-01	-64000000
2009-04-01	17401000000
2009-07-01	22791000000
2009-10-01	8164000000
2010-01-01	11048000000
2010-04-01	8773000000
2010-07-01	14004000000
2010-10-01	9845000000
2011-01-01	2186000000
2011-04-01	7895000000
2011-07-01	5415000000
2011-10-01	1707000000
2012-01-01	19385000000
2012-04-01	-2975000000
2012-07-01	12406000000
2012-10-01	4199000000
2013-01-01	3982000000
2013-04-01	-3143000000
2013-07-01	14033000000
2013-10-01	5234000000