Quarter	US Dollars, sum over component sub-periods
2005-01-01	-6854764423.1733200
2005-04-01	-3178441430.2928000
2005-07-01	-2788171349.9137800
2005-10-01	9413962285.0769500
2006-01-01	-8278067617.3129200
2006-04-01	-2955029936.9888396
2006-07-01	2698377826.8426200
2006-10-01	-3128474406.5160500
2007-01-01	-2094757252.5745900
2007-04-01	8732074826.7852600
2007-07-01	3122236051.6929700
2007-10-01	-18463113985.2882000
2008-01-01	-2727365209.2714500
2008-04-01	-2284960711.8806100
2008-07-01	-10058674064.5555000
2008-10-01	2721143300.9280000
2009-01-01	-195709448.7355840
2009-04-01	-9071269102.4800420
2009-07-01	10456460883.9583000
2009-10-01	-13593166469.8723000
2010-01-01	-17200154077.4050030
2010-04-01	2324913870.4312100
2010-07-01	-12436143083.2409000
2010-10-01	14265573284.8174000
2011-01-01	8502914161.0352600
2011-04-01	10276807352.0141010
2011-07-01	5020997828.3911900
2011-10-01	-13437910980.8543000
2012-01-01	-3667029788.3693800
2012-04-01	-5786171651.8970995
2012-07-01	8175256938.6863190
2012-10-01	4465564720.3517500
2013-01-01	18520276918.8715000
2013-04-01	-271599495.0532630
2013-07-01	2916721674.0503000
2013-10-01	8295188810.7265410
2014-01-01	-2260992591.5089600
2014-04-01	7219518228.5475410
2014-07-01	5895995617.0492900
2014-10-01	9022848790.2674800
2015-01-01	-22634809132.3746000
2015-04-01	27392854952.5815000
2015-07-01	11597974688.0488000
2015-10-01	10999678577.9215010
2016-01-01	-5673203131.9994000
2016-04-01	12153119888.4694000
2016-07-01	7222358716.7706900
2016-10-01	5457047221.1541900
2017-01-01	6810646630.6143200
2017-04-01	-3527094829.1132097
2017-07-01	10641239299.8178000
2017-10-01	2790344214.9570503
2018-01-01	-10684817372.6453000
2018-04-01	-13542084948.9182000
2018-07-01	2063361709.4322298