Quarter	US Dollars, sum over component sub-periods
2006-01-01	24696160000.000000
2006-04-01	11964906670.000000
2006-07-01	30015253330.000000
2006-10-01	11724800000.000000
2007-01-01	13197600000.000000
2007-04-01	5046613333.000000
2007-07-01	21192000000.000000
2007-10-01	38282666670.000000
2008-01-01	28341108890.000000
2008-04-01	34658886930.000000
2008-07-01	40231244800.000000
2008-10-01	-934948499.600000
2009-01-01	-23452944530.000000
2009-04-01	-19500330000.000000
2009-07-01	-16542632130.000002
2009-10-01	19696386670.000000
2010-01-01	10883865540.000000
2010-04-01	12606859420.000000
2010-07-01	-1559192203.000000
2010-10-01	10427047240.000000
2011-01-01	33420409330.000004
2011-04-01	31294560000.000000
2011-07-01	32087721330.000000
2011-10-01	16488104000.000000
2012-01-01	32407526670.000000
2012-04-01	34687013330.000000
2012-07-01	23077653330.000000
2012-10-01	28756560000.000000
2013-01-01	30860560000.000000
2013-04-01	31917620000.000000
2013-07-01	30602386670.000000
2013-10-01	33152326670.000004
2014-01-01	23588895750.000000
2014-04-01	25572151320.000000
2014-07-01	12873476250.000000
2014-10-01	1951462281.000000
2015-01-01	-16245477730.000000
2015-04-01	-6926156605.000000
2015-07-01	-16008646280.000000
2015-10-01	-33901904470.000000
2016-01-01	-26395270060.000000
2016-04-01	-23434180570.000000
2016-07-01	-16627692770.000002
2016-10-01	-24898540680.000000
2017-01-01	2091335904.000000
2017-04-01	-3662433394.000000
2017-07-01	8883190172.000000
2017-10-01	3118134640.000000
2018-01-01	9052127052.000000
2018-04-01	14851684600.000000