Quarter	US Dollars, sum over component sub-periods
2004-01-01	120363919.834119990
2004-04-01	2014673846.530410000
2004-07-01	-491139664.336834970
2004-10-01	-2815860859.362600000
2005-01-01	-3145336974.735670000
2005-04-01	-1876434146.727800000
2005-07-01	679793765.792532000
2005-10-01	2618960951.413750000
2006-01-01	-1649021268.036800000
2006-04-01	4872895844.671639000
2006-07-01	2724214021.944979700
2006-10-01	4184826758.487860000
2007-01-01	3858451163.399800000
2007-04-01	8541890001.988100000
2007-07-01	7732837493.348320000
2007-10-01	10552513848.375000000
2008-01-01	16023523836.718300000
2008-04-01	10681251630.812800000
2008-07-01	1636628217.914690000
2008-10-01	-1030669601.224690100
2009-01-01	-230906684.835991000
2009-04-01	2127627035.600690000
2009-07-01	5081313038.716300000
2009-10-01	1501256488.408040000
2010-01-01	1411014046.742600000
2010-04-01	2938263240.613180000
2010-07-01	4766639395.920350000
2010-10-01	3806823572.715400000
2011-01-01	13123658080.264900000
2011-04-01	-59314526.779202096
2011-07-01	-6683752771.867520000
2011-10-01	291204926.135815000
2012-01-01	-839236775.427892000
2012-04-01	-1253408836.773390000
2012-07-01	210200632.290698000
2012-10-01	-1737626685.531279800
2013-01-01	1335888892.174300000
2013-04-01	1930808031.927389900
2013-07-01	2574310478.437530000
2013-10-01	-2470705018.487990000
2014-01-01	-3230460873.642330000
2014-04-01	974506234.772991000
2014-07-01	3038006630.190700000
2014-10-01	-465647314.911700000
2015-01-01	-305571195.437663000
2015-04-01	5982669660.012220000
2015-07-01	-2723112393.992049700
2015-10-01	-5371085462.844080000
2016-01-01	5090444354.796250000
2016-04-01	5496648732.486120000
2016-07-01	1122834393.636770000
2016-10-01	4397133674.364409000
2017-01-01	-5265334705.471230500
2017-04-01	-3729489584.382070000
2017-07-01	-3436996060.567380000
2017-10-01	-20868181.389484800
2018-01-01	2038562102.153000000
2018-04-01	-4566185757.192620000