Quarter	US Dollars, Sum Over Component Sub-periods
1980-01-01	124000000
1980-04-01	136000000
1980-07-01	3000000
1980-10-01	149000000
1981-01-01	79000000
1981-04-01	112000000
1981-07-01	-107000000
1981-10-01	-23000000
1982-01-01	54000000
1982-04-01	41000000
1982-07-01	-95000000
1982-10-01	57000000
1983-01-01	-68000000
1983-04-01	44000000
1983-07-01	-86000000
1983-10-01	62000000
1984-01-01	-16000000
1984-04-01	73000000
1984-07-01	-98000000
1984-10-01	52000000
1985-01-01	139000000
1985-04-01	273000000
1985-07-01	186000000
1985-10-01	150000000
1986-01-01	144000000
1986-04-01	161000000
1986-07-01	-20000000
1986-10-01	96000000
1987-01-01	142000000
1987-04-01	162000000
1987-07-01	-17000000
1987-10-01	120000000
1988-01-01	151000000
1988-04-01	140000000
1988-07-01	-88000000
1988-10-01	94000000
1989-01-01	130000000
1989-04-01	93000000
1989-07-01	-143000000
1989-10-01	-9000000
1990-01-01	38000000
1990-04-01	118000000
1990-07-01	-341000000
1990-10-01	-168000000
1991-01-01	-166000000
1991-04-01	-35000000
1991-07-01	-300000000
1991-10-01	-7000000
1992-01-01	194000000
1992-04-01	223000000
1992-07-01	-172000000
1992-10-01	21000000
1993-01-01	-42000000
1993-04-01	35000000
1993-07-01	-347000000
1993-10-01	-77000000
1994-01-01	-119000000
1994-04-01	-141000000
1994-07-01	-510000000
1994-10-01	-242000000
1995-01-01	-12000000
1995-04-01	62000000
1995-07-01	-230000000
1995-10-01	-145000000
1996-01-01	-53000000
1996-04-01	55000000
1996-07-01	-529000000
1996-10-01	14000000
1997-01-01	135000000
1997-04-01	188000000
1997-07-01	-247000000
1997-10-01	163000000
1998-01-01	223000000
1998-04-01	502000000
1998-07-01	-180000000
1998-10-01	322000000
1999-01-01	462000000
1999-04-01	539000000
1999-07-01	369000000
1999-10-01	902000000
2000-01-01	666000000
2000-04-01	910000000
2000-07-01	2043000000
2000-10-01	307000000
2001-01-01	691000000
2001-04-01	98000000
2001-07-01	-367000000
2001-10-01	377000000
2002-01-01	276000000
2002-04-01	223000000
2002-07-01	-341000000
2002-10-01	759000000
2003-01-01	844000000
2003-04-01	331000000
2003-07-01	-81000000
2003-10-01	869000000
2004-01-01	515000000
2004-04-01	669000000
2004-07-01	79000000
2004-10-01	1428000000
2005-01-01	779000000
2005-04-01	674000000
2005-07-01	374000000
2005-10-01	1417000000
2006-01-01	1088000000
2006-04-01	1336000000
2006-07-01	183000000
2006-10-01	1357000000
2007-01-01	1012000000
2007-04-01	1220000000
2007-07-01	177000000
2007-10-01	1277000000
2008-01-01	1951000000
2008-04-01	1502000000
2008-07-01	435000000
2008-10-01	1282000000
2009-01-01	1073000000
2009-04-01	1899000000
2009-07-01	271000000
2009-10-01	1851000000
2010-01-01	1553000000
2010-04-01	1627000000
2010-07-01	1036000000
2010-10-01	2484000000
2011-01-01	2108000000
2011-04-01	1793000000
2011-07-01	737000000
2011-10-01	2208000000
2012-01-01	1889000000
2012-04-01	3058000000
2012-07-01	1795000000
2012-10-01	3423000000
2013-01-01	2949000000
2013-04-01	3976000000
2013-07-01	2187000000
2013-10-01	4381000000
2014-01-01	3153000000
2014-04-01	3439000000
2014-07-01	2029000000
2014-10-01	3801000000