Quarter	US Dollars, sum over component sub-periods
2005-01-01	2762727868.3975500
2005-04-01	-30062837994.3983000
2005-07-01	24858092862.2436000
2005-10-01	17994660243.4380000
2006-01-01	-13655385937.9577000
2006-04-01	6866619467.6844900
2006-07-01	-25661979411.7646980
2006-10-01	-15296989341.0447000
2007-01-01	3620033978.8307100
2007-04-01	21949077594.7890000
2007-07-01	-33871729251.4311000
2007-10-01	6617762467.6974600
2008-01-01	-12933109059.1582000
2008-04-01	3406195209.9681697
2008-07-01	-24209785385.2565000
2008-10-01	-20406511615.1419000
2009-01-01	2204255255.3598500
2009-04-01	13201761654.4173000
2009-07-01	-3453641044.0659404
2009-10-01	38060473627.9642940
2010-01-01	1160930219.7966600
2010-04-01	23801668583.2209970
2010-07-01	-8583628578.9555290
2010-10-01	-152374424.1785950
2011-01-01	6212382405.8935100
2011-04-01	7476186292.8127400
2011-07-01	10697842862.8613000
2011-10-01	13716014848.6838000
2012-01-01	14111438223.1073990
2012-04-01	-1707189008.2971700
2012-07-01	-7696984837.5675600
2012-10-01	-8774519635.6911000
2013-01-01	-5311154519.4031500
2013-04-01	-6372732059.5328700
2013-07-01	-7934233259.0688910
2013-10-01	-1812730644.3336700
2014-01-01	-2256140391.3013600
2014-04-01	8398096772.7070400
2014-07-01	-514854420.2857940
2014-10-01	2888874353.6702500
2015-01-01	323507936.4163840
2015-04-01	-16965629594.7514000
2015-07-01	-11633917380.0839000
2015-10-01	-6434378132.7314600
2016-01-01	8970740813.3234400
2016-04-01	-6181370333.1095500
2016-07-01	8747568255.1992590
2016-10-01	-8407516401.2500210
2017-01-01	10330638007.4664000
2017-04-01	-15417949850.5597000
2017-07-01	4769204684.9811000
2017-10-01	-6954297854.7828800
2018-01-01	-2145413343.4932300
2018-04-01	2768544720.3574200