Quarter	US Dollars, sum over component sub-periods
2008-01-01	30410551459.203900
2008-04-01	29888159860.385100
2008-07-01	-9180925481.027530
2008-10-01	27930085471.346200
2009-01-01	-303991961.880003
2009-04-01	-17361088554.518600
2009-07-01	-14406319066.175900
2009-10-01	-42512121203.016400
2010-01-01	-40425865675.853000
2010-04-01	-12073253921.094300
2010-07-01	-5137632272.976021
2010-10-01	-4758030592.967620
2011-01-01	47610018370.678696
2011-04-01	-8634431294.454700
2011-07-01	6832831450.492520
2011-10-01	-26021069609.099000
2012-01-01	-20092140427.924300
2012-04-01	-7592949486.680610
2012-07-01	9912638565.043629
2012-10-01	19997281430.883700
2013-01-01	79739359956.878900
2013-04-01	86650474604.924990
2013-07-01	-36619926291.143600
2013-10-01	44806570124.764700
2014-01-01	43387761064.678400
2014-04-01	-10057345018.529001
2014-07-01	-25892727719.045200
2014-10-01	29574264495.461400
2015-01-01	-106183208605.330000
2015-04-01	14850316169.419700
2015-07-01	27474644491.186203
2015-10-01	38075734623.759895
2016-01-01	52611023476.366500
2016-04-01	-71146167838.802610
2016-07-01	11972745410.859400
2016-10-01	7802774350.122849
2017-01-01	20069107752.732803
2017-04-01	13808619745.660400
2017-07-01	38902663155.167595
2017-10-01	19142625362.713600