Quarter	US Dollars, sum over component sub-periods
2004-01-01	1050982580.10105000
2004-04-01	162251050.40563402
2004-07-01	-1169407228.71727010
2004-10-01	567480827.31228900
2005-01-01	690241160.36542700
2005-04-01	-807877500.43908200
2005-07-01	802838189.63858700
2005-10-01	-1005079090.26746000
2006-01-01	763032209.34435300
2006-04-01	888926092.05482900
2006-07-01	977067678.26882400
2006-10-01	-1805420594.62041000
2007-01-01	903079582.09521810
2007-04-01	500167740.32598400
2007-07-01	-150843612.99350000
2007-10-01	520678019.09628200
2008-01-01	-1444678739.59370000
2008-04-01	1861203909.37213020
2008-07-01	667019477.74808610
2008-10-01	-1066224330.93507990
2009-01-01	1631398106.36750000
2009-04-01	-78713362.32201609
2009-07-01	8868627.17013562
2009-10-01	-2091129847.45943000
2010-01-01	-514208336.21618396
2010-04-01	-285142044.59504400
2010-07-01	-398041903.27002200
2010-10-01	146997800.38985000
2011-01-01	-264011242.38667000
2011-04-01	-763403221.28415200
2011-07-01	278439336.21118100
2011-10-01	-1347866585.39928000
2012-01-01	3087192360.13273000
2012-04-01	1135651893.79391000
2012-07-01	-1593966953.36932000
2012-10-01	2871260644.90636000
2013-01-01	5205538526.62708950
2013-04-01	4067437102.42388000
2013-07-01	-397911745.92286800
2013-10-01	-2419379592.63603970
2014-01-01	5527195904.85744000
2014-04-01	-1951299771.28885000
2014-07-01	3179517221.87342020
2014-10-01	-2548480189.84584000
2015-01-01	-1644128025.74358990
2015-04-01	679445125.05749000
2015-07-01	-923042372.55941200
2015-10-01	-1422117851.18073990
2016-01-01	-515578271.97258910
2016-04-01	779837547.65393200
2016-07-01	315791815.26142600
2016-10-01	-2257597279.48984000
2017-01-01	2461543454.65673970
2017-04-01	-1295537247.20915990
2017-07-01	537446898.17154300
2017-10-01	12488044734.72470000
2018-01-01	-1035820943.87230990
2018-04-01	312811060.60642100