Quarter	US Dollars, sum over component sub-periods
2004-01-01	157972604.29507100
2004-04-01	-442898429.37527100
2004-07-01	-242626107.48387998
2004-10-01	-56112255.83800200
2005-01-01	130018460.30116801
2005-04-01	-461032050.69925400
2005-07-01	-898204080.00499600
2005-10-01	-601133765.41649900
2006-01-01	-350431039.73936900
2006-04-01	-760988439.09357400
2006-07-01	-1283398042.02447000
2006-10-01	-725634481.37551400
2007-01-01	-993149136.58023200
2007-04-01	-1694121394.62753990
2007-07-01	-1250125684.19919000
2007-10-01	-1201817717.86969000
2008-01-01	-998987209.56399200
2008-04-01	-2443653092.39679000
2008-07-01	-204842435.92377100
2008-10-01	588230716.23136400
2009-01-01	662562204.69310700
2009-04-01	89633731.88151330
2009-07-01	763583048.95336200
2009-10-01	2171219470.08744000
2010-01-01	2149488146.60260000
2010-04-01	221080517.90753898
2010-07-01	658325462.95180700
2010-10-01	525560060.95142700
2011-01-01	18833702.68112210
2011-04-01	104982324.30318800
2011-07-01	106494180.03216699
2011-10-01	640728555.40103400
2012-01-01	1907170636.63049000
2012-04-01	-90194822.66711120
2012-07-01	-384686276.99763500
2012-10-01	544824008.72496600
2013-01-01	857973553.07481710
2013-04-01	-490751753.18387500
2013-07-01	-81844802.14708850
2013-10-01	347852146.16384100
2014-01-01	1059067445.95088000
2014-04-01	-1208223884.67430000
2014-07-01	77741065.56437150
2014-10-01	593427202.06086500
2015-01-01	2092607426.06950000
2015-04-01	-1404138663.05019000
2015-07-01	166799081.75215498
2015-10-01	2430928598.33640960
2016-01-01	-3810969868.76771000
2016-04-01	-942930419.08118010
2016-07-01	347649964.82225200
2016-10-01	-140291698.06680802
2017-01-01	-1031746972.35638000
2017-04-01	1836649502.19375010
2017-07-01	-1050675800.18859000
2017-10-01	-1028467387.57645000
2018-01-01	-2313374403.90207000
2018-04-01	-1049310765.67777990