Quarter	US Dollars, sum over component sub-periods
2008-01-01	27762383258.4634970
2008-04-01	-70221852911.2312000
2008-07-01	214077030734.0190000
2008-10-01	467562567393.5570000
2009-01-01	-119432809164.1880000
2009-04-01	169110756386.4920000
2009-07-01	58053175201.4655000
2009-10-01	-14565699166.2809000
2010-01-01	120268569677.6810000
2010-04-01	107268683629.3230000
2010-07-01	-46688247503.4267000
2010-10-01	37310159158.7832000
2011-01-01	32043663841.6177020
2011-04-01	93294667123.5864100
2011-07-01	246490257934.3809800
2011-10-01	-24134815004.9139000
2012-01-01	-114531544919.6070000
2012-04-01	68958409014.8802000
2012-07-01	-88144695715.1391900
2012-10-01	30928346504.6813000
2013-01-01	-2323366261.3583903
2013-04-01	228011690111.2020300
2013-07-01	164035673280.2060200
2013-10-01	99818497815.8072000
2014-01-01	110398508852.0450000
2014-04-01	-7390804994.5837300
2014-07-01	-23611872384.5743980
2014-10-01	-17204051813.6864000
2015-01-01	150492931390.5700000
2015-04-01	63391688204.4724960
2015-07-01	-45631066044.5445900
2015-10-01	-6574395236.9143200
2016-01-01	-112378098506.2849900
2016-04-01	139427184504.6990000
2016-07-01	-83350738925.9412100
2016-10-01	39028353045.3768000
2017-01-01	-100991690406.6890000
2017-04-01	-22529700666.5133000
2017-07-01	-3110520902.7917700
2017-10-01	125318130624.4360000
2018-01-01	-76946294913.5826100
2018-04-01	44291830536.1238000