Quarter	US Dollars, sum over component sub-periods
2008-01-01	-50349208894.513890
2008-04-01	-181672979515.972000
2008-07-01	57661990198.857900
2008-10-01	89282459544.831200
2009-01-01	-284953948418.917000
2009-04-01	-85191145203.627400
2009-07-01	28361297520.598900
2009-10-01	-146325042748.883000
2010-01-01	-67840491040.099600
2010-04-01	31996901945.360500
2010-07-01	48432265517.916600
2010-10-01	-98193173340.009600
2011-01-01	-125593333638.734000
2011-04-01	-86592435901.430000
2011-07-01	64439362423.628200
2011-10-01	-65634931948.288300
2012-01-01	87741387692.229100
2012-04-01	-121141203181.722000
2012-07-01	101008301844.237990
2012-10-01	-31218146044.550900
2013-01-01	-8788230526.195640
2013-04-01	85483961062.542910
2013-07-01	74748728172.432710
2013-10-01	56426329334.638405
2014-01-01	44644475625.758400
2014-04-01	-84159435722.491090
2014-07-01	62136680554.524900
2014-10-01	159545473349.128000
2015-01-01	-104868913397.726990
2015-04-01	-25178513112.255802
2015-07-01	112017634196.667000
2015-10-01	104542951583.213000
2016-01-01	109949215659.398990
2016-04-01	37451963592.172900
2016-07-01	205192036643.695000
2016-10-01	-67297453458.599300
2017-01-01	71898465262.526900
2017-04-01	164786838960.254000
2017-07-01	195921357357.732000
2017-10-01	7850391823.216110
2018-01-01	111414468770.745010
2018-04-01	-73360864473.589510