Quarter	US Dollars, Sum Over Component Sub-periods
1980-01-01	-129000000
1980-04-01	417000000
1980-07-01	767000000
1980-10-01	-220000000
1981-01-01	-79000000
1981-04-01	709000000
1981-07-01	994000000
1981-10-01	509000000
1982-01-01	-26000000
1982-04-01	895000000
1982-07-01	1212000000
1982-10-01	471000000
1983-01-01	440000000
1983-04-01	903000000
1983-07-01	1316000000
1983-10-01	-53000000
1984-01-01	608000000
1984-04-01	914000000
1984-07-01	1564000000
1984-10-01	-883000000
1985-01-01	566000000
1985-04-01	674000000
1985-07-01	-229000000
1985-10-01	-763000000
1986-01-01	336000000
1986-04-01	-292000000
1986-07-01	159000000
1986-10-01	-604000000
1987-01-01	251000000
1987-04-01	683000000
1987-07-01	1119000000
1987-10-01	-353000000
1988-01-01	13000000
1988-04-01	341000000
1988-07-01	778000000
1988-10-01	-735000000
1989-01-01	-329000000
1989-04-01	351000000
1989-07-01	-195000000
1989-10-01	-613000000
1990-01-01	-615000000
1990-04-01	598000000
1990-07-01	346000000
1990-10-01	346000000
1991-01-01	962000000
1991-04-01	-260000000
1991-07-01	801000000
1991-10-01	399000000
1992-01-01	757000000
1992-04-01	-112000000
1992-07-01	1365000000
1992-10-01	-160000000
1993-01-01	855000000
1993-04-01	1291000000
1993-07-01	603000000
1993-10-01	-518000000
1994-01-01	113000000
1994-04-01	338000000
1994-07-01	690000000
1994-10-01	796000000
1995-01-01	1100000000
1995-04-01	1791000000
1995-07-01	1185000000
1995-10-01	402000000
1996-01-01	1275000000
1996-04-01	1541000000
1996-07-01	1462000000
1996-10-01	-47000000
1997-01-01	521000000
1997-04-01	1037000000
1997-07-01	716000000
1997-10-01	-1284000000
1998-01-01	611000000
1998-04-01	467000000
1998-07-01	821000000
1998-10-01	210000000
1999-01-01	3888000000
1999-04-01	599000000
1999-07-01	2458000000
1999-10-01	-381000000
2000-01-01	1501000000
2000-04-01	321000000
2000-07-01	2071000000
2000-10-01	1367000000
2001-01-01	-2259000000
2001-04-01	549000000
2001-07-01	-128000000
2001-10-01	277000000
2002-01-01	-1389000000
2002-04-01	158000000
2002-07-01	565000000
2002-10-01	-941000000
2003-01-01	-992000000
2003-04-01	-1083000000
2003-07-01	246000000
2003-10-01	-2063000000
2004-01-01	-1483000000
2004-04-01	-615000000
2004-07-01	2000000000
2004-10-01	-3147000000
2005-01-01	-1077000000
2005-04-01	-3513000000
2005-07-01	-2090000000
2005-10-01	-2450000000
2006-01-01	-6577000000
2006-04-01	-829000000
2006-07-01	784000000
2006-10-01	-3306000000
2007-01-01	-1600000000
2007-04-01	-1256000000
2007-07-01	1200000000
2007-10-01	-387000000
2008-01-01	354000000
2008-04-01	-978000000
2008-07-01	-496000000
2008-10-01	941000000
2009-01-01	-1728000000
2009-04-01	-1431000000
2009-07-01	-1931000000
2009-10-01	-4923000000
2010-01-01	-1707000000
2010-04-01	-6091000000
2010-07-01	-1322000000
2010-10-01	-1826000000
2011-01-01	-2968000000
2011-04-01	1576000000
2011-07-01	-3701000000
2011-10-01	-6084000000
2012-01-01	-833000000
2012-04-01	-4470000000
2012-07-01	-134000000
2012-10-01	-1080000000
2013-01-01	-904000000
2013-04-01	-646000000
2013-07-01	-988000000
2013-10-01	-5768000000
2014-01-01	-3270000000
2014-04-01	-2013000000
2014-07-01	-2325000000
2014-10-01	-5017000000