Quarter	US Dollars, sum over component sub-periods
1980-01-01	-6200000.00000000
1980-04-01	82500000.00000000
1980-07-01	-50100000.00000000
1980-10-01	133300000.00000001
1981-01-01	-102900000.00000000
1981-04-01	18600000.00000000
1981-07-01	32600000.00000000
1981-10-01	138100000.00000000
1982-01-01	-23300000.00000000
1982-04-01	136400000.00000000
1982-07-01	197600000.00000000
1982-10-01	181500000.00000000
1983-01-01	-161600000.00000000
1983-04-01	39300000.00000000
1983-07-01	-57700000.00000000
1983-10-01	152100000.00000000
1984-01-01	6400000.00000000
1984-04-01	-63200000.00000000
1984-07-01	-42200000.00000000
1984-10-01	101300000.00000000
1985-01-01	308300000.00000000
1985-04-01	-175900000.00000000
1985-07-01	82600000.00000000
1985-10-01	-147700000.00000000
1986-01-01	52000000.00000000
1986-04-01	-18600000.00000000
1986-07-01	265600000.00000003
1986-10-01	-12400000.00000000
1987-01-01	104000000.00000000
1987-04-01	73500000.00000000
1987-07-01	136400000.00000000
1987-10-01	230300000.00000000
1988-01-01	45400000.00000000
1988-04-01	278100000.00000000
1988-07-01	554100000.00000000
1988-10-01	838100000.00000000
1989-01-01	-319900000.00000000
1989-04-01	-247400000.00000000
1989-07-01	122100000.00000000
1989-10-01	1265000000.00000000
1990-01-01	379000000.00000000
1990-04-01	723600000.00000000
1990-07-01	3988200000.00000000
1990-10-01	-2145500000.00000000
1991-01-01	259800000.00000000
1991-04-01	1442000000.00000000
1991-07-01	1584600000.00000000
1991-10-01	567100000.00000000
1992-01-01	950800000.00000000
1992-04-01	1841400000.00000000
1992-07-01	1900600000.00000000
1992-10-01	366900000.00000000
1993-01-01	1950600000.00000000
1993-04-01	409500000.00000000
1993-07-01	1454400000.00000000
1993-10-01	1598400000.00000000
1994-01-01	920700000.00000000
1994-04-01	1969900000.00000000
1994-07-01	2198300000.00000000
1994-10-01	2266100000.00000000
1995-01-01	4223100000.00000050
1995-04-01	2413300000.00000000
1995-07-01	3573700000.00000000
1995-10-01	2886900000.00000000
1996-01-01	2472400000.00000000
1996-04-01	2151300000.00000000
1996-07-01	2937200000.00000000
1996-10-01	5167300000.00000000
1997-01-01	1184000000.00000000
1997-04-01	3013700000.00000000
1997-07-01	2087900000.00000000
1997-10-01	5769800000.00000000
1998-01-01	863900000.00000000
1998-04-01	-1541900000.00000000
1998-07-01	-2626700000.00000000
1998-10-01	-1578400000.00000000
1999-01-01	-863900000.00000000
1999-04-01	1494400000.00000000
1999-07-01	3054800000.00000000
1999-10-01	-1788600000.00000000
2000-01-01	2824900000.00000000
2000-04-01	-962500000.00000000
2000-07-01	-808300000.00000000
2000-10-01	2144600000.00000000
2001-01-01	-1164900000.00000000
2001-04-01	655600000.00000000
2001-07-01	-3131200000.00000000
2001-10-01	-2433100000.00000000
2002-01-01	-734700000.00000000
2002-04-01	-2384700000.00000000
2002-07-01	815700000.00000000
2002-10-01	1978800000.00000000
2003-01-01	-517100000.00000000
2003-04-01	3210200000.00000000
2003-07-01	2050699999.99999980
2003-10-01	2135800000.00000020
2004-01-01	7420600000.00000000
2004-04-01	4654100000.00000000
2004-07-01	4090300000.00000000
2004-10-01	-6705100000.00000000
2005-01-01	278500000.00000000
2005-04-01	145400000.00000000
2005-07-01	1741000000.00000000
2005-10-01	4010800000.00000000
2006-01-01	2063900000.00000000
2006-04-01	2998700000.00000000
2006-07-01	1788300000.00000000
2006-10-01	3431700000.00000000
2007-01-01	390100000.00000000
2007-04-01	3640100000.00000000
2007-07-01	5472300000.00000000
2007-10-01	7463300000.00000000
2008-01-01	4852700000.00000000
2008-04-01	4645300000.00000000
2008-07-01	6201000000.00000000
2008-10-01	-2180900000.00000000
2009-01-01	-4390100000.00000000
2009-04-01	-639900000.00000000
2009-07-01	-423200000.00000000
2009-10-01	1185300000.00000000
2010-01-01	4385300000.00000000
2010-04-01	6297600000.00000000
2010-07-01	4639800000.00000000
2010-10-01	-3581200000.00000000
2011-01-01	7711800000.00000000
2011-04-01	43100000.00000000
2011-07-01	15402900000.00000000
2011-10-01	-991400000.00000000
2012-01-01	2210000000.00000000
2012-04-01	2365900000.00000000
2012-07-01	4506900000.00000000
2012-10-01	-482700000.00000000
2013-01-01	2524600000.00000000
2013-04-01	8189800000.00000000
2013-07-01	15678800000.00000000
2013-10-01	10703500000.00000000
2014-01-01	3936100000.00000000
2014-04-01	12385400000.00000000
2014-07-01	7178500000.00000000
2014-10-01	14910000000.00000000
2015-01-01	3574100000.00000000
2015-04-01	10263100000.00000000
2015-07-01	8661100000.00000000
2015-10-01	-6481700000.00000000
2016-01-01	127800000.00000000
2016-04-01	9655800000.00000000
2016-07-01	6778800000.00000000
2016-10-01	-2155900000.00000000
2017-01-01	8688400000.00000000
2017-04-01	-1255600000.00000000
2017-07-01	8126000000.00000000
2017-10-01	6411800000.00000000
2018-01-01	611400000.00000000
2018-04-01	-1706400000.00000000
2018-07-01	8179700000.00000000