Quarter	US Dollars, Sum Over Component Sub-periods
1984-01-01	795000000
1984-04-01	445000000
1984-07-01	-173000000
1984-10-01	-97000000
1985-01-01	160000000
1985-04-01	318000000
1985-07-01	900000000
1985-10-01	472000000
1986-01-01	702000000
1986-04-01	463000000
1986-07-01	353000000
1986-10-01	65000000
1987-01-01	566000000
1987-04-01	246000000
1987-07-01	-242000000
1987-10-01	742000000
1988-01-01	192000000
1988-04-01	-536000000
1988-07-01	-936000000
1988-10-01	-831000000
1989-01-01	-626000000
1989-04-01	-63000000
1989-07-01	-908000000
1989-10-01	-312000000
1990-01-01	810000000
1990-04-01	489000000
1990-07-01	316000000
1990-10-01	1478000000
1991-01-01	277000000
1991-04-01	-992000000
1991-07-01	-732000000
1991-10-01	249000000
1992-01-01	923000000
1992-04-01	1165000000
1992-07-01	-168000000
1992-10-01	244000000
1993-01-01	1837000000
1993-04-01	2406000000
1993-07-01	2137000000
1993-10-01	2215000000
1994-01-01	3799000000
1994-04-01	-3277000000
1994-07-01	-4533000000
1994-10-01	-452000000
1995-01-01	-804000000
1995-04-01	-126000000
1995-07-01	-980000000
1995-10-01	1817000000
1996-01-01	918000000
1996-04-01	776000000
1996-07-01	-1750000000
1996-10-01	994000000
1997-01-01	992000000
1997-04-01	2372000000
1997-07-01	-1628000000
1997-10-01	1889000000
1998-01-01	122000000
1998-04-01	-1461000000
1998-07-01	-5038000000
1998-10-01	5090000000
1999-01-01	-1683000000
1999-04-01	-502000000
1999-07-01	-1054000000
1999-10-01	2862000000
2000-01-01	3020000000
2000-04-01	3012000000
2000-07-01	2638000000
2000-10-01	3911000000
2001-01-01	1448000000
2001-04-01	-1124000000
2001-07-01	242000000
2001-10-01	-2199000000
2002-01-01	2149000000
2002-04-01	255000000
2002-07-01	-1637000000
2002-10-01	617000000
2003-01-01	4251000000
2003-04-01	-1221000000
2003-07-01	-1242000000
2003-10-01	1277000000
2004-01-01	6466000000
2004-04-01	2258000000
2004-07-01	1907000000
2004-10-01	2729000000
2005-01-01	4867000000
2005-04-01	4042000000
2005-07-01	2997000000
2005-10-01	7579000000
2006-01-01	7398000000
2006-04-01	8695000000
2006-07-01	6921000000
2006-10-01	9050000000
2007-01-01	8467000000
2007-04-01	7129000000
2007-07-01	10621000000
2007-10-01	11047000000
2008-01-01	10948000000
2008-04-01	19045000000
2008-07-01	8393000000
2008-10-01	-926000000
2009-01-01	-3676000000
2009-04-01	4323000000
2009-07-01	2804000000
2009-10-01	5595000000
2010-01-01	9291000000
2010-04-01	12651000000
2010-07-01	7203000000
2010-10-01	15347000000
2011-01-01	18926000000
2011-04-01	17888000000
2011-07-01	13511000000
2011-10-01	15622000000
2012-01-01	11048000000
2012-04-01	17934000000
2012-07-01	5031000000
2012-10-01	13425000000
2013-01-01	20192000000
2013-04-01	21290000000
2013-07-01	5109000000
2013-10-01	15987000000
2014-01-01	3650000000
2014-04-01	14131000000