Quarter	US Dollars, sum over component sub-periods
2008-01-01	1802961338342.830000
2008-04-01	417197458569.127000
2008-07-01	426035909789.278000
2008-10-01	-1233885322775.600000
2009-01-01	-42567731147.705894
2009-04-01	155320489141.593000
2009-07-01	746659110805.284000
2009-10-01	532132098508.283000
2010-01-01	937496738005.087000
2010-04-01	800908551909.611000
2010-07-01	1395794149442.470000
2010-10-01	833993646484.513000
2011-01-01	1621091479488.060000
2011-04-01	1014426131318.410000
2011-07-01	806359963304.332000
2011-10-01	356820580410.204040
2012-01-01	863283473830.897000
2012-04-01	282634980497.311000
2012-07-01	730707174356.134000
2012-10-01	842977535936.962000
2013-01-01	1107270393348.680200
2013-04-01	815999683466.886100
2013-07-01	512718865880.915040
2013-10-01	1433603169881.110000
2014-01-01	998333829766.263900
2014-04-01	1221651992541.780000
2014-07-01	993235888278.452000
2014-10-01	488364589234.053000
2015-01-01	1336564587968.000000
2015-04-01	534352763037.164000
2015-07-01	156058039711.440000
2015-10-01	291948602270.378000
2016-01-01	569053465831.703000
2016-04-01	1083363544491.610000
2016-07-01	701997872840.466000
2016-10-01	293323565207.870000
2017-01-01	1161780745962.519800
2017-04-01	919690659069.210100
2017-07-01	1029298266330.030000
2017-10-01	575815339011.500000