Quarter	US Dollars, sum over component sub-periods
2008-01-01	-49726489450.174800
2008-04-01	-188070905189.736000
2008-07-01	25354746478.621800
2008-10-01	22551788171.930200
2009-01-01	-215138046367.234000
2009-04-01	-89823748796.539700
2009-07-01	53360862410.155600
2009-10-01	-247183788347.191000
2010-01-01	-81514787367.886400
2010-04-01	46104504400.657700
2010-07-01	-80695869441.481200
2010-10-01	-182717033036.814030
2011-01-01	-254493550665.148000
2011-04-01	-213587086145.906000
2011-07-01	-20223571029.541100
2011-10-01	-91666494542.294190
2012-01-01	-142710758585.568000
2012-04-01	-157418044383.277000
2012-07-01	123547848927.487990
2012-10-01	-239367512385.025020
2013-01-01	-42634064734.924200
2013-04-01	18271892962.645500
2013-07-01	-30432185930.439500
2013-10-01	-217072961479.125000
2014-01-01	-54052912105.077500
2014-04-01	-114102102329.628000
2014-07-01	32426128625.221400
2014-10-01	20821968991.614200
2015-01-01	-252239002258.257020
2015-04-01	-77082847666.421900
2015-07-01	37797246214.558900
2015-10-01	12285493805.277700
2016-01-01	-14743012548.197300
2016-04-01	98175796590.700500
2016-07-01	26316926696.258297
2016-10-01	-209409636906.740000
2017-01-01	7021036270.240440
2017-04-01	-40374618681.147300
2017-07-01	87696384488.575100
2017-10-01	78109395319.359500