Quarter	US Dollars, Sum Over Component Sub-periods
1981-01-01	-907000000
1981-04-01	-1116000000
1981-07-01	-1313000000
1981-10-01	-1213000000
1982-01-01	-1235000000
1982-04-01	-1033000000
1982-07-01	-1085000000
1982-10-01	-1005000000
1983-01-01	-1022000000
1983-04-01	-811000000
1983-07-01	-996000000
1983-10-01	-936000000
1984-01-01	-1023000000
1984-04-01	-688000000
1984-07-01	-1008000000
1984-10-01	-950000000
1985-01-01	-1154000000
1985-04-01	-936000000
1985-07-01	-1077000000
1985-10-01	-1124000000
1986-01-01	-1000000000
1986-04-01	-817000000
1986-07-01	-920000000
1986-10-01	-675000000
1987-01-01	-807000000
1987-04-01	-805000000
1987-07-01	-881000000
1987-10-01	-882000000
1988-01-01	-795000000
1988-04-01	-781000000
1988-07-01	-826000000
1988-10-01	-835000000
1989-01-01	-835000000
1989-04-01	-896000000
1989-07-01	-920000000
1989-10-01	-913000000
1990-01-01	-902000000
1990-04-01	-840000000
1990-07-01	-853000000
1990-10-01	-973000000
1991-01-01	-937000000
1991-04-01	-896000000
1991-07-01	-902000000
1991-10-01	-1007000000
1992-01-01	-1029000000
1992-04-01	-1294000000
1992-07-01	-1149000000
1992-10-01	-1237000000
1993-01-01	-1244000000
1993-04-01	-1169000000
1993-07-01	-1764000000
1993-10-01	-1710000000
1994-01-01	-1622000000
1994-04-01	-1647000000
1994-07-01	-1589000000
1994-10-01	-1762000000
1995-01-01	-1890000000
1995-04-01	-2149000000
1995-07-01	-1946000000
1995-10-01	-2086000000
1996-01-01	-1969000000
1996-04-01	-2290000000
1996-07-01	-2068000000
1996-10-01	-2213000000
1997-01-01	-2438000000
1997-04-01	-2966000000
1997-07-01	-2220000000
1997-10-01	-2042000000
1998-01-01	-2130000000
1998-04-01	-2497000000
1998-07-01	-1822000000
1998-10-01	-1159000000
1999-01-01	-1159000000
1999-04-01	-1963000000
1999-07-01	-2142000000
1999-10-01	-2513000000
2000-01-01	-2544000000
2000-04-01	-2705000000
2000-07-01	-2642000000
2000-10-01	-2532000000
2001-01-01	-3024000000
2001-04-01	-2587000000
2001-07-01	-2285000000
2001-10-01	-2484000000
2002-01-01	-2584000000
2002-04-01	-2380000000
2002-07-01	-2589000000
2002-10-01	-2829000000
2003-01-01	-3303000000
2003-04-01	-2706000000
2003-07-01	-3503000000
2003-10-01	-2595000000
2004-01-01	-3063000000
2004-04-01	-1649000000
2004-07-01	-1609000000
2004-10-01	-2489000000
2005-01-01	-1911000000
2005-04-01	-1176000000
2005-07-01	-2305000000
2005-10-01	-3730000000
2006-01-01	-2290000000
2006-04-01	-2352000000
2006-07-01	-2402000000
2006-10-01	-2829000000
2007-01-01	-3163000000
2007-04-01	-2991000000
2007-07-01	-2764000000
2007-10-01	-2922000000
2008-01-01	-3071000000
2008-04-01	-3387000000
2008-07-01	-3313000000
2008-10-01	-3227000000
2009-01-01	-1672000000
2009-04-01	-2476000000
2009-07-01	-2249000000
2009-10-01	-3344000000
2010-01-01	-2106000000
2010-04-01	-2275000000
2010-07-01	-2155000000
2010-10-01	-2787000000
2011-01-01	-1822000000
2011-04-01	-3133000000
2011-07-01	-2562000000
2011-10-01	-3115000000
2012-01-01	-1983000000
2012-04-01	-2790000000
2012-07-01	-2359000000
2012-10-01	-3198000000
2013-01-01	-2511000000
2013-04-01	-3365000000
2013-07-01	-2675000000
2013-10-01	-2877000000