Quarter	US Dollars, sum over component sub-periods
2006-01-01	3879466667.00000000
2006-04-01	7627733333.00000000
2006-07-01	3057333333.00000000
2006-10-01	-678400000.00000000
2007-01-01	3050133333.00000000
2007-04-01	6322400000.00000000
2007-07-01	4499200000.00000000
2007-10-01	2989600000.00000000
2008-01-01	-7632533333.00000000
2008-04-01	11722283200.00000000
2008-07-01	-10405126670.00000000
2008-10-01	5914666667.00000000
2009-01-01	8432975467.00000000
2009-04-01	5371860000.00000000
2009-07-01	-7235815467.00000000
2009-10-01	328880000.00000000
2010-01-01	-478365333.29999995
2010-04-01	8530768800.00000000
2010-07-01	1561876533.00000000
2010-10-01	-2112451333.00000000
2011-01-01	4234207999.99999950
2011-04-01	1153546667.00000000
2011-07-01	6741724000.00000000
2011-10-01	-886108000.00000000
2012-01-01	6805366667.00000000
2012-04-01	9370910000.00000000
2012-07-01	611220000.00000000
2012-10-01	-5821733333.00000000
2013-01-01	16111166670.00000000
2013-04-01	7236386667.00000000
2013-07-01	18119393330.00000000
2013-10-01	13230506670.00000000
2014-01-01	13166501880.00000000
2014-04-01	9800800125.00000000
2014-07-01	7651650796.00000000
2014-10-01	2574138933.00000000
2015-01-01	10195784910.00000000
2015-04-01	13490675310.00000000
2015-07-01	7493159961.00000000
2015-10-01	3654976198.00000000
2016-01-01	3154324448.00000000
2016-04-01	-10169610190.00000000
2016-07-01	-3256003007.00000000
2016-10-01	9465671349.00000000
2017-01-01	24289451520.00000000
2017-04-01	9304637464.00000000
2017-07-01	14107843410.00000000
2017-10-01	8129741128.00000000
2018-01-01	6548210535.00000000
2018-04-01	11760904830.00000000