Quarter	US Dollars, sum over component sub-periods
2012-01-01	-122747245.1534629900
2012-04-01	-33763726.1629037040
2012-07-01	-27097288.6378016020
2012-10-01	-36992072.6631159000
2013-01-01	-117366713.6040880100
2013-04-01	-46669084.0609806000
2013-07-01	-24045155.0910412970
2013-10-01	-49528159.6812478000
2014-01-01	-74996811.0870468900
2014-04-01	-67010980.1185061000
2014-07-01	-12491024.8156429000
2014-10-01	-27158991.7116452980
2015-01-01	-92781095.4461031000
2015-04-01	-15733514.8346662000
2015-07-01	-2919152.4963357100
2015-10-01	-586019.6117171050
2016-01-01	-85475282.8304391000
2016-04-01	-7877135.9157002200
2016-07-01	0.0000000000
2016-10-01	-2147605.1942398604
2017-01-01	-17539685.9596769000
2017-04-01	-63404382.8719774900
2017-07-01	-9543683.5108497700
2017-10-01	122460.6933644940
2018-01-01	-97188334.0908295000
2018-04-01	-124765.4222783880