Quarter	US Dollars, sum over component sub-periods
1996-01-01	26350347.240687700
1996-04-01	72977817.553518000
1996-07-01	56810206.803298600
1996-10-01	151078360.208693000
1997-01-01	161212658.316899000
1997-04-01	188431227.789733000
1997-07-01	-44096270.560413900
1997-10-01	101429235.846836000
1998-01-01	9070570.879880851
1998-04-01	-515018087.378779000
1998-07-01	-108139664.788332000
1998-10-01	-675167017.958042000
1999-01-01	1514441.211954230
1999-04-01	-2707761476.540910000
1999-07-01	-102885099.074695000
1999-10-01	-44714862.453746594
2000-01-01	-190908867.794632000
2000-04-01	-186303985.497953980
2000-07-01	-214836235.608061020
2000-10-01	-137986548.121047020
2001-01-01	-65900108.299227800
2001-04-01	-319637988.781213000
2001-07-01	16651511.547868399
2001-10-01	-64322033.008737000
2002-01-01	-7675978.289035080
2002-04-01	-343942868.431571000
2002-07-01	-357438800.984648050
2002-10-01	21638612.720785100
2003-01-01	-5240329.581351710
2003-04-01	-1422140677.182180200
2003-07-01	-100114243.797981990
2003-10-01	-207779741.771221000
2004-01-01	-145627034.110244000
2004-04-01	-86176680.399605300
2004-07-01	53767665.903543200
2004-10-01	-250377208.512565020
2005-01-01	-111094809.625615000
2005-04-01	-426475648.770750000
2005-07-01	-71083640.728990900
2005-10-01	-320478486.086487000
2006-01-01	-358437984.500286000
2006-04-01	-104858734.279868000
2006-07-01	-162220059.195471020
2006-10-01	-120933826.416846000
2007-01-01	-110120015.454002990
2007-04-01	-2951164.265576560
2007-07-01	-283194760.236743000
2007-10-01	-790391859.715543000
2008-01-01	-606748360.593097000
2008-04-01	-600911880.326049000
2008-07-01	-101920497.190996000
2008-10-01	-347873756.969696000
2009-01-01	-383817842.848123970
2009-04-01	-582261023.369871000
2009-07-01	-813929761.049282000
2009-10-01	-646144508.380539900
2010-01-01	-365133994.857206000
2010-04-01	-11816082.325943300
2010-07-01	-394878011.067159000
2010-10-01	-454830763.012901000
2011-01-01	-1244069356.438930000
2011-04-01	-219751071.313396000
2011-07-01	378739053.263265970
2011-10-01	1054113976.048990000
2012-01-01	-1441639.186142200
2012-04-01	-238781952.377620000
2012-07-01	-543834354.880389000
2012-10-01	-438093896.233338000
2013-01-01	-234923720.628828000
2013-04-01	-562479121.691284100
2013-07-01	-328621402.702550000
2013-10-01	-260909052.605700020
2014-01-01	173694178.931174000
2014-04-01	-13921141.181418200
2014-07-01	6095702.515750780
2014-10-01	4675614.569835930
2015-01-01	21207676.877242800
2015-04-01	1481515.587737660
2015-07-01	-48489205.727979100
2015-10-01	-74405274.419477090
2016-01-01	-4507016049.188640000
2016-04-01	245515651.861496980
2016-07-01	-61801074.414720700
2016-10-01	-214233648.739306000
2017-01-01	-74466526.321182600
2017-04-01	69875272.033068000
2017-07-01	69531879.255523410
2017-10-01	-41268068.547782400
2018-01-01	-184697308.827564980
2018-04-01	102909934.868253010
2018-07-01	74529727.096512200