Quarter	US Dollars, Sum Over Component Sub-periods
1979-01-01	301000000
1979-04-01	1908000000
1979-07-01	650000000
1979-10-01	2587000000
1980-01-01	2058000000
1980-04-01	1049000000
1980-07-01	2126000000
1980-10-01	3004000000
1981-01-01	2533000000
1981-04-01	2297000000
1981-07-01	2567000000
1981-10-01	4383000000
1982-01-01	2925000000
1982-04-01	2888000000
1982-07-01	1693000000
1982-10-01	2287000000
1983-01-01	1958000000
1983-04-01	534000000
1983-07-01	1488000000
1983-10-01	2585000000
1984-01-01	850000000
1984-04-01	1499000000
1984-07-01	1337000000
1984-10-01	1616000000
1985-01-01	-325000000
1985-04-01	-1458000000
1985-07-01	-352000000
1985-10-01	412000000
1986-01-01	81000000
1986-04-01	-242000000
1986-07-01	31000000
1986-10-01	555000000
1987-01-01	588000000
1987-04-01	653000000
1987-07-01	1500000000
1987-10-01	364000000
1988-01-01	-1214000000
1988-04-01	-2474000000
1988-07-01	-1523000000
1988-10-01	-2375000000
1989-01-01	-617000000
1989-04-01	-954000000
1989-07-01	2041000000
1989-10-01	711000000
1990-01-01	1877000000
1990-04-01	1400000000
1990-07-01	207000000
1990-10-01	2324000000
1991-01-01	792000000
1991-04-01	-1147000000
1991-07-01	-254000000
1991-10-01	123000000
1992-01-01	2851000000
1992-04-01	-564000000
1992-07-01	-280000000
1992-10-01	-8516000000
1993-01-01	-720000000
1993-04-01	-311000000
1993-07-01	1041000000
1993-10-01	2678000000
1994-01-01	3982000000
1994-04-01	-35714000000
1994-07-01	-2124000000
1994-10-01	3308000000
1995-01-01	3613000000
1995-04-01	2975000000
1995-07-01	5590000000
1995-10-01	5842000000
1996-01-01	3340000000
1996-04-01	3749000000
1996-07-01	444000000
1996-10-01	3456000000
1997-01-01	-729000000
1997-04-01	-1536000000
1997-07-01	-417000000
1997-10-01	-164000000
1998-01-01	8733000000
1998-04-01	-1247000000
1998-07-01	-9621000000
1998-10-01	-758000000
1999-01-01	-4482000000
1999-04-01	4274000000
1999-07-01	-2472000000
1999-10-01	-6543000000
2000-01-01	-1919000000
2000-04-01	-11375000000
2000-07-01	-2917000000
2000-10-01	998000000
2001-01-01	775000000
2001-04-01	5375000000
2001-07-01	4402000000
2001-10-01	-1200000000
2002-01-01	-2044000000
2002-04-01	7793000000
2002-07-01	-1409000000
2002-10-01	-2191000000
2003-01-01	2481000000
2003-04-01	1389000000
2003-07-01	-582000000
2003-10-01	-3973000000
2004-01-01	-2721000000
2004-04-01	-224000000
2004-07-01	-3703000000
2004-10-01	-2074000000
2005-01-01	-615000000
2005-04-01	-7343000000
2005-07-01	-3936000000
2005-10-01	-10592000000
2006-01-01	2479000000
2006-04-01	4763000000
2006-07-01	1869000000
2006-10-01	15376000000
2007-01-01	12389000000
2007-04-01	19051000000
2007-07-01	-2078000000
2007-10-01	2321000000
2008-01-01	11793000000
2008-04-01	8566000000
2008-07-01	8435000000
2008-10-01	-20645000000
2009-01-01	1139000000
2009-04-01	13260000000
2009-07-01	3239000000
2009-10-01	-3562000000
2010-01-01	13224000000
2010-04-01	15327000000
2010-07-01	11553000000
2010-10-01	1438000000
2011-01-01	11313000000
2011-04-01	17810000000
2011-07-01	14448000000
2011-10-01	3238000000
2012-01-01	437000000
2012-04-01	11933000000
2012-07-01	3439000000
2012-10-01	3740000000
2013-01-01	13469000000
2013-04-01	443000000
2013-07-01	-2281000000
2013-10-01	8111000000
2014-01-01	12869000000
2014-04-01	9741000000
2014-07-01	14168000000
2014-10-01	13614000000