Quarter	US Dollars, sum over component sub-periods
1980-01-01	-115100000.000000000
1980-04-01	-64599999.999999990
1980-07-01	1149300000.000000000
1980-10-01	96100000.000000000
1981-01-01	-622300000.000000000
1981-04-01	195000000.000000000
1981-07-01	-428000000.000000000
1981-10-01	1321600000.000000000
1982-01-01	-558900000.000000000
1982-04-01	203100000.000000000
1982-07-01	38900000.000000000
1982-10-01	1085700000.000000000
1983-01-01	-1066300000.000000000
1983-04-01	86000000.000000000
1983-07-01	267899999.999999970
1983-10-01	779400000.000000000
1984-01-01	-491800000.000000000
1984-04-01	384100000.000000000
1984-07-01	200300000.000000000
1984-10-01	875300000.000000000
1985-01-01	-467100000.000000000
1985-04-01	42500000.000000000
1985-07-01	680300000.000000000
1985-10-01	378500000.000000000
1986-01-01	-219700000.000000000
1986-04-01	374200000.000000000
1986-07-01	888300000.000000000
1986-10-01	467100000.000000000
1987-01-01	32200000.000000004
1987-04-01	311000000.000000000
1987-07-01	731300000.000000000
1987-10-01	900200000.000000000
1988-01-01	3564400000.000000000
1988-04-01	3105100000.000000000
1988-07-01	3898900000.000000000
1988-10-01	1203700000.000000000
1989-01-01	2143000000.000000000
1989-04-01	2110000000.000000000
1989-07-01	1454800000.000000000
1989-10-01	-259399999.999999970
1990-01-01	-348600000.000000000
1990-04-01	1534100000.000000000
1990-07-01	5146200000.000000000
1990-10-01	-2861000000.000000000
1991-01-01	-740000000.000000000
1991-04-01	2241400000.000000000
1991-07-01	2003400000.000000000
1991-10-01	647700000.000000000
1992-01-01	2817200000.000000000
1992-04-01	1462900000.000000000
1992-07-01	2734300000.000000000
1992-10-01	3201400000.000000000
1993-01-01	3520600000.000000000
1993-04-01	1071099999.999999900
1993-07-01	2864100000.000000000
1993-10-01	3481700000.000000000
1994-01-01	2057300000.000000200
1994-04-01	4140300000.000000000
1994-07-01	3950000000.000000000
1994-10-01	7036700000.000000000
1995-01-01	5669800000.000000000
1995-04-01	5971200000.000000000
1995-07-01	9006200000.000000000
1995-10-01	6391800000.000000000
1996-01-01	6213300000.000000000
1996-04-01	7499100000.000000000
1996-07-01	2105600000.000000000
1996-10-01	9581900000.000000000
1997-01-01	-580600000.000000000
1997-04-01	8494900000.000000000
1997-07-01	916800000.000000000
1997-10-01	-5273300000.000000000
1998-01-01	9960900000.000000000
1998-04-01	11722100000.000000000
1998-07-01	4590000000.000000000
1998-10-01	6692200000.000000000
1999-01-01	7028300000.000000000
1999-04-01	6900700000.000000000
1999-07-01	5449600000.000000000
1999-10-01	8699700000.000000000
2000-01-01	16050500000.000000000
2000-04-01	6788700000.000000000
2000-07-01	4089500000.000000000
2000-10-01	5582800000.000000000
2001-01-01	655000000.000000000
2001-04-01	2779300000.000000000
2001-07-01	1789300000.000000000
2001-10-01	4666000000.000000000
2002-01-01	3194600000.000000000
2002-04-01	2832800000.000000000
2002-07-01	6426500000.000000000
2002-10-01	7127100000.000000000
2003-01-01	2666600000.000000000
2003-04-01	11860800000.000000000
2003-07-01	12512000000.000000000
2003-10-01	15492100000.000000000
2004-01-01	19782800000.000000000
2004-04-01	12982800000.000000000
2004-07-01	15117000000.000000000
2004-10-01	17238900000.000000000
2005-01-01	15094700000.000000000
2005-04-01	9239900000.000000000
2005-07-01	11035100000.000000000
2005-10-01	14783500000.000000000
2006-01-01	16540500000.000000000
2006-04-01	21682800000.000000000
2006-07-01	14691300000.000000000
2006-10-01	23051700000.000000000
2007-01-01	24136000000.000000000
2007-04-01	27839600000.000000000
2007-07-01	20119700000.000000000
2007-10-01	33072400000.000000000
2008-01-01	7505300000.000000000
2008-04-01	5683700000.000000000
2008-07-01	-2595500000.000000000
2008-10-01	-42999900000.000000000
2009-01-01	7347800000.000000000
2009-04-01	22725300000.000000000
2009-07-01	29242700000.000000000
2009-10-01	24210700000.000000000
2010-01-01	16231500000.000000000
2010-04-01	19296900000.000000000
2010-07-01	21196900000.000000000
2010-10-01	10703200000.000000000
2011-01-01	20178000000.000000000
2011-04-01	14584600000.000000000
2011-07-01	13906100000.000000000
2011-10-01	22324900000.000000000
2012-01-01	19916000000.000000000
2012-04-01	13858800000.000000000
2012-07-01	22852000000.000000000
2012-10-01	19241600000.000000000
2013-01-01	22148800000.000000000
2013-04-01	18019500000.000000000
2013-07-01	31202800000.000000000
2013-10-01	33465400000.000000000
2014-01-01	24820000000.000000000
2014-04-01	41827000000.000000000
2014-07-01	25128300000.000000000
2014-10-01	28549600000.000000000
2015-01-01	25737000000.000000000
2015-04-01	39437300000.000000000
2015-07-01	19436100000.000000000
2015-10-01	10889400000.000000000
2016-01-01	19863200000.000000000
2016-04-01	34508700000.000000000
2016-07-01	34905600000.000000000
2016-10-01	22465400000.000000000
2017-01-01	41190300000.000000000
2017-04-01	22365700000.000000000
2017-07-01	33057300000.000004000
2017-10-01	28677200000.000000000
2018-01-01	28116000000.000000000
2018-04-01	30755000000.000000000
2018-07-01	39752500000.000000000