Quarter	US Dollars, sum over component sub-periods
2003-04-01	-843967416.3459591
2003-07-01	1727883529.0026300
2003-10-01	9051586532.4568000
2004-01-01	15138064318.4718000
2004-04-01	13204677532.3462000
2004-07-01	8630878827.2845900
2004-10-01	13904848304.7077000
2005-01-01	10558367097.5501000
2005-04-01	4564619230.1074500
2005-07-01	8212119025.4059400
2005-10-01	17248089891.2883000
2006-01-01	17883479330.5079000
2006-04-01	5334220132.5781700
2006-07-01	11767873361.6687010
2006-10-01	25207304024.5687000
2007-01-01	22465960797.0568000
2007-04-01	4224878642.1511602
2007-07-01	9629628148.4057800
2007-10-01	-412985267.0571110
2008-01-01	24300924775.0873000
2008-04-01	16036088373.1111010
2008-07-01	7623506540.8448400
2008-10-01	-939060520.7231920
2009-01-01	19781303779.5769000
2009-04-01	22982122881.4246000
2009-07-01	14331415422.1917000
2009-10-01	6783878623.8462100
2010-01-01	3839957300.8609000
2010-04-01	23388255226.4545020
2010-07-01	19193890738.2025000
2010-10-01	4913499883.7604400
2011-01-01	4849548817.9467600
2011-04-01	11653989220.8480000
2011-07-01	26018263936.9342000
2011-10-01	27046255333.1720000
2012-01-01	10656524836.8542000
2012-04-01	14773989914.6337000
2012-07-01	17319906265.9638980
2012-10-01	22402685433.1828000
2013-01-01	28972145048.0725000
2013-04-01	12809344689.3699000
2013-07-01	16762893291.1248020
2013-10-01	25369798158.7303000
2014-01-01	19532257881.4848000
2014-04-01	9426025739.8732000
2014-07-01	21302301803.5369000
2014-10-01	27361512199.9470000
2015-01-01	35512264772.4118000
2015-04-01	-21680747747.6427000
2015-07-01	17032316259.1626000
2015-10-01	16693142366.6990990
2016-01-01	18967725653.3738000
2016-04-01	14184099965.3650000
2016-07-01	12560256793.5781000
2016-10-01	17074210810.8037000
2017-01-01	26541961781.7604030
2017-04-01	11962273886.1579000
2017-07-01	19940501392.3873980
2017-10-01	26371683281.9973000
2018-01-01	29597517419.8179000
2018-04-01	20282688229.0385970