Quarter	US Dollars, sum over component sub-periods
2004-01-01	1691690000.0000000
2004-04-01	990070000.0000000
2004-07-01	-680750000.0000000
2004-10-01	-957270000.0000000
2005-01-01	1373820000.0000000
2005-04-01	1949480000.0000000
2005-07-01	6014290000.0000000
2005-10-01	112240000.0000000
2006-01-01	1957990000.0000000
2006-04-01	-759780000.0000000
2006-07-01	1207790000.0000000
2006-10-01	1383640000.0000000
2007-01-01	452220000.0000000
2007-04-01	3333830000.0000000
2007-07-01	2418120000.0000000
2007-10-01	-1429970000.0000000
2008-01-01	3160460000.0000000
2008-04-01	2341960000.0000000
2008-07-01	-387370000.0000000
2008-10-01	2194200000.0000000
2009-01-01	762430000.0000000
2009-04-01	4816810000.0000000
2009-07-01	728090000.0000000
2009-10-01	1900280000.0000000
2010-01-01	3071620000.0000000
2010-04-01	-308280000.0000000
2010-07-01	-1179290000.0000000
2010-10-01	-3846250000.0000000
2011-01-01	1867760000.0000000
2011-04-01	-3901820000.0000000
2011-07-01	7125760000.0000000
2011-10-01	-3290920000.0000000
2012-01-01	2087370000.0000000
2012-04-01	2535020000.0000000
2012-07-01	1177180000.0000000
2012-10-01	-7721990000.0000000
2013-01-01	6945220000.0000000
2013-04-01	-1552700000.0000000
2013-07-01	2124330000.0000000
2013-10-01	-6734130000.0000000
2014-01-01	4138729999.9999995
2014-04-01	-2008850000.0000000
2014-07-01	-1384550000.0000000
2014-10-01	-5017120000.0000000
2015-01-01	5310010000.0000000
2015-04-01	7509690000.0000000
2015-07-01	-409290000.0000000
2015-10-01	-2346390000.0000000
2016-01-01	2824520000.0000000
2016-04-01	4351020000.0000000
2016-07-01	3070110000.0000000
2016-10-01	-4428830000.0000000
2017-01-01	2472970000.0000000
2017-04-01	7170760000.0000000
2017-07-01	1189170000.0000000
2017-10-01	-77750000.0000000
2018-01-01	-550890000.0000000
2018-04-01	-1462090000.0000000