Quarter	US Dollars, Sum Over Component Sub-periods
1980-01-01	19000000
1980-04-01	-60000000
1980-07-01	-38000000
1980-10-01	-94000000
1981-01-01	-28000000
1981-04-01	-68000000
1981-07-01	-36000000
1981-10-01	-23000000
1982-01-01	-36000000
1982-04-01	-45000000
1982-07-01	-14000000
1982-10-01	58000000
1983-01-01	-3000000
1983-04-01	-43000000
1983-07-01	-136000000
1983-10-01	-82000000
1984-01-01	0
1984-04-01	75000000
1984-07-01	33000000
1984-10-01	46000000
1985-01-01	23000000
1985-04-01	17000000
1985-07-01	49000000
1985-10-01	30000000
1986-01-01	18000000
1986-04-01	41000000
1986-07-01	48000000
1986-10-01	19000000
1987-01-01	7000000
1987-04-01	21000000
1987-07-01	31000000
1987-10-01	9000000
1988-01-01	-3000000
1988-04-01	-4000000
1988-07-01	-275000000
1988-10-01	-283000000
1989-01-01	-40000000
1989-04-01	48000000
1989-07-01	-79000000
1989-10-01	-35000000
1990-01-01	-52000000
1990-04-01	-32000000
1990-07-01	-92000000
1990-10-01	-192000000
1991-01-01	68000000
1991-04-01	-53000000
1991-07-01	-41000000
1991-10-01	-183000000
1992-01-01	-36000000
1992-04-01	-336000000
1992-07-01	-458000000
1992-10-01	-353000000
1993-01-01	-341000000
1993-04-01	249000000
1993-07-01	-280000000
1993-10-01	-440000000
1994-01-01	-837000000
1994-04-01	-1504000000
1994-07-01	-188000000
1994-10-01	756000000
1995-01-01	44000000
1995-04-01	14000000
1995-07-01	-1000000
1995-10-01	97000000
1996-01-01	20000000
1996-04-01	-3000000
1996-07-01	103000000
1996-10-01	157000000
1997-01-01	64000000
1997-04-01	126000000
1997-07-01	126000000
1997-10-01	-189000000
1998-01-01	-638000000
1998-04-01	670000000
1998-07-01	-17000000
1998-10-01	-116000000
1999-01-01	-458000000
1999-04-01	-399000000
1999-07-01	-266000000
1999-10-01	-177000000
2000-01-01	-523000000
2000-04-01	-1076000000
2000-07-01	-2231000000
2000-10-01	517000000
2001-01-01	-357000000
2001-04-01	-38000000
2001-07-01	-21000000
2001-10-01	-824000000
2002-01-01	-1539000000
2002-04-01	-1018000000
2002-07-01	432000000
2002-10-01	-519000000
2003-01-01	406000000
2003-04-01	-455000000
2003-07-01	-1041000000
2003-10-01	-2156000000
2004-01-01	-1445000000
2004-04-01	-794000000
2004-07-01	531000000
2004-10-01	-1144000000
2005-01-01	-1701000000
2005-04-01	-1748000000
2005-07-01	-3351000000
2005-10-01	-1175000000
2006-01-01	-3320000000
2006-04-01	222000000
2006-07-01	-1210000000
2006-10-01	-2039000000
2007-01-01	-1440000000
2007-04-01	-1262000000
2007-07-01	415000000
2007-10-01	-851000000
2008-01-01	498000000
2008-04-01	-1011000000
2008-07-01	383000000
2008-10-01	-1504000000
2009-01-01	-723000000
2009-04-01	-2523000000
2009-07-01	-1793000000
2009-10-01	-3216000000
2010-01-01	-3508000000
2010-04-01	-1670000000
2010-07-01	-1788000000
2010-10-01	-2405000000
2011-01-01	-1196000000
2011-04-01	336000000
2011-07-01	460000000
2011-10-01	-3002000000
2012-01-01	-737000000
2012-04-01	-1389000000
2012-07-01	-1973000000
2012-10-01	-3926000000
2013-01-01	-2636000000
2013-04-01	-1378000000
2013-07-01	-3328000000
2013-10-01	-2075000000
2014-01-01	-3528000000
2014-04-01	-2684000000
2014-07-01	-2120000000
2014-10-01	-1765000000