Quarter	US Dollars, Sum Over Component Sub-periods
1981-01-01	96000000
1981-04-01	-687000000
1981-07-01	-274000000
1981-10-01	-804000000
1982-01-01	-142000000
1982-04-01	-2059000000
1982-07-01	-228000000
1982-10-01	278000000
1983-01-01	-120000000
1983-04-01	512000000
1983-07-01	159000000
1983-10-01	-83000000
1984-01-01	-257000000
1984-04-01	-315000000
1984-07-01	-16000000
1984-10-01	-32000000
1985-01-01	585000000
1985-04-01	169000000
1985-07-01	144000000
1985-10-01	-248000000
1986-01-01	-423000000
1986-04-01	184000000
1986-07-01	-588000000
1986-10-01	-441000000
1987-01-01	-603000000
1987-04-01	-233000000
1987-07-01	533000000
1987-10-01	-450000000
1988-01-01	-544000000
1988-04-01	138000000
1988-07-01	-371000000
1988-10-01	-156000000
1989-01-01	-832000000
1989-04-01	-185000000
1989-07-01	-208000000
1989-10-01	-90000000
1990-01-01	-7000000
1990-04-01	-1091000000
1990-07-01	895000000
1990-10-01	947000000
1991-01-01	-251000000
1991-04-01	667000000
1991-07-01	155000000
1991-10-01	-480000000
1992-01-01	-243000000
1992-04-01	-75000000
1992-07-01	-123000000
1992-10-01	-839000000
1993-01-01	-62000000
1993-04-01	-937000000
1993-07-01	-938000000
1993-10-01	-994000000
1994-01-01	948000000
1994-04-01	-524000000
1994-07-01	-822000000
1994-10-01	136000000
1995-01-01	518000000
1995-04-01	125000000
1995-07-01	-460000000
1995-10-01	-2438000000
1996-01-01	1077000000
1996-04-01	1125000000
1996-07-01	-781000000
1996-10-01	-102000000
1997-01-01	-921000000
1997-04-01	1119000000
1997-07-01	-1687000000
1997-10-01	-1156000000
1998-01-01	290000000
1998-04-01	214000000
1998-07-01	-307000000
1998-10-01	1902000000
1999-01-01	-127000000
1999-04-01	744000000
1999-07-01	570000000
1999-10-01	890000000
2000-01-01	1582000000
2000-04-01	1015000000
2000-07-01	471000000
2000-10-01	762000000
2001-01-01	469000000
2001-04-01	1346000000
2001-07-01	640000000
2001-10-01	-1754000000
2002-01-01	-160000000
2002-04-01	-834000000
2002-07-01	-1489000000
2002-10-01	720000000
2003-01-01	418000000
2003-04-01	-966000000
2003-07-01	-1168000000
2003-10-01	-1794000000
2004-01-01	3304000000
2004-04-01	-942000000
2004-07-01	-3361000000
2004-10-01	-2095000000
2005-01-01	954000000
2005-04-01	-2331000000
2005-07-01	1305000000
2005-10-01	-64000000
2006-01-01	380000000
2006-04-01	1364000000
2006-07-01	-91000000
2006-10-01	-580000000
2007-01-01	-99000000
2007-04-01	-666000000
2007-07-01	-40000000
2007-10-01	-573000000
2008-01-01	-1181000000
2008-04-01	233000000
2008-07-01	-1630000000
2008-10-01	2340000000
2009-01-01	-570000000
2009-04-01	995000000
2009-07-01	-1159000000
2009-10-01	-2241000000
2010-01-01	-932000000
2010-04-01	312000000
2010-07-01	-1552000000
2010-10-01	692000000
2011-01-01	-115000000
2011-04-01	-23000000
2011-07-01	-1616000000
2011-10-01	-1641000000
2012-01-01	65000000
2012-04-01	342000000
2012-07-01	301000000
2012-10-01	-971000000
2013-01-01	-315000000
2013-04-01	-779000000
2013-07-01	297000000
2013-10-01	-808000000