Quarter	US Dollars, sum over component sub-periods
2008-01-01	403662032191.847960
2008-04-01	-261616300963.152980
2008-07-01	-120982979480.032000
2008-10-01	-992954451710.285000
2009-01-01	-188963883779.931980
2009-04-01	-250661476673.870000
2009-07-01	-173483507346.233980
2009-10-01	-112793426409.500000
2010-01-01	58977316082.354004
2010-04-01	-12642822134.148201
2010-07-01	155746688858.430000
2010-10-01	-76059213684.078800
2011-01-01	93239172888.022300
2011-04-01	21160690987.258200
2011-07-01	29195748126.638300
2011-10-01	-113035535621.068010
2012-01-01	160810841564.345000
2012-04-01	-149025073410.068000
2012-07-01	2482549096.239120
2012-10-01	-161016413938.031000
2013-01-01	38107666578.351300
2013-04-01	-130576171634.165010
2013-07-01	-248882670381.459000
2013-10-01	-112593502621.773010
2014-01-01	109231945709.418000
2014-04-01	73515595979.187410
2014-07-01	77557703324.408510
2014-10-01	-38058261461.266200
2015-01-01	-63829879339.188600
2015-04-01	-206416601403.067020
2015-07-01	6221169963.964500
2015-10-01	-163582837304.727000
2016-01-01	149888677166.932980
2016-04-01	147526270579.183000
2016-07-01	132244238905.520000
2016-10-01	-85242722708.091200
2017-01-01	226184739871.231000
2017-04-01	2454592174.911820
2017-07-01	124224931079.733000
2017-10-01	-42309501213.331600
2018-01-01	293585621670.762000
2018-04-01	-24234161383.050800