Quarter	US Dollars, sum over component sub-periods
1999-01-01	124038990878.9040000
1999-04-01	80298221308.8629000
1999-07-01	10836933466.3669000
1999-10-01	62706906312.9633000
2000-01-01	41252842052.5269000
2000-04-01	34714247741.3989940
2000-07-01	105997549900.6260000
2000-10-01	79074679898.8734000
2001-01-01	97781479624.7361000
2001-04-01	63618472266.0116960
2001-07-01	22818970114.7045020
2001-10-01	42784187051.2524950
2002-01-01	58587768439.5646000
2002-04-01	35971642754.1627000
2002-07-01	20392841733.0033000
2002-10-01	74087581852.8814000
2003-01-01	78696793424.1883100
2003-04-01	91256390661.9354000
2003-07-01	22441098393.6133000
2003-10-01	85217230537.0000000
2004-01-01	145834978528.9459800
2004-04-01	90327177588.6902000
2004-07-01	27715648286.8518000
2004-10-01	154682693424.3370000
2005-01-01	114891860313.2070000
2005-04-01	149275759785.1490200
2005-07-01	79415117768.5566100
2005-10-01	278043681038.8780000
2006-01-01	180100241630.6110200
2006-04-01	79221464410.0853000
2006-07-01	186276016428.1640000
2006-10-01	170636240926.9319800
2007-01-01	285705136696.0400000
2007-04-01	209215073665.8100000
2007-07-01	23004417215.7518000
2007-10-01	170331063916.5900000
2008-01-01	272092450693.7830000
2008-04-01	88489028857.2348000
2008-07-01	-26518826352.2503970
2008-10-01	-63642035877.8793000
2009-01-01	-53098827272.5660000
2009-04-01	75679220950.8491000
2009-07-01	119433229930.7220000
2009-10-01	36002991886.8077000
2010-01-01	177042096211.4400000
2010-04-01	-31237285571.6576000
2010-07-01	111361268846.6810000
2010-10-01	44320583343.7651000
2011-01-01	74671020212.0558000
2011-04-01	119035633508.8320000
2011-07-01	-36386316907.5159000
2011-10-01	-255592098010.7960200
2012-01-01	46514432616.0944000
2012-04-01	-16789848967.3031000
2012-07-01	-72386721896.3378000
2012-10-01	-2288027715.1373596
2013-01-01	104123965479.5050000
2013-04-01	53701819359.9306000
2013-07-01	-9852421991.2593000
2013-10-01	-105523061422.3880000
2014-01-01	184022868863.0630000
2014-04-01	103601265158.4080000
2014-07-01	-10925989403.5550000
2014-10-01	-38390775069.5738000
2015-01-01	212158370500.3180000
2015-04-01	-23690436486.4177000
2015-07-01	-21283447215.0426980
2015-10-01	-101088986682.1150000
2016-01-01	147228566612.7790000
2016-04-01	131259103246.0840000
2016-07-01	53586411846.2339000
2016-10-01	-34238932394.5538000
2017-01-01	206073415182.6070000
2017-04-01	49855088701.6006900
2017-07-01	44360509929.9371000
2017-10-01	-59225600733.8194050
2018-01-01	212683078155.0880000
2018-04-01	133090028059.3050100