Quarter	US Dollars, sum over component sub-periods
2000-01-01	-55891350.237235600
2000-04-01	-45480126.117229400
2000-07-01	-98921675.936907710
2000-10-01	-210388751.074516980
2001-01-01	-47711909.474349300
2001-04-01	-48775041.006285496
2001-07-01	-214301272.653779000
2001-10-01	-274718936.386969030
2002-01-01	-76829172.312434000
2002-04-01	-122243036.215442000
2002-07-01	-207232101.686256000
2002-10-01	-256796014.005733970
2003-01-01	-100972980.609665990
2003-04-01	-172941298.463106000
2003-07-01	-237436540.331786000
2003-10-01	-341253205.815392000
2004-01-01	-318546456.989792000
2004-04-01	-414470863.443193000
2004-07-01	-358560308.289018000
2004-10-01	-522461841.487774000
2005-01-01	-319217517.905974000
2005-04-01	-398384472.631343000
2005-07-01	-566475487.890626100
2005-10-01	-791160128.592003100
2006-01-01	-633629746.838501000
2006-04-01	-865697280.487439000
2006-07-01	-1177926530.323110000
2006-10-01	-1463226851.272700000
2007-01-01	-1456292030.704940000
2007-04-01	-1617087050.942530000
2007-07-01	-1939321804.890980000
2007-10-01	-1056956984.259059900
2008-01-01	-1533689802.278750000
2008-04-01	-1127217153.084070200
2008-07-01	-1207408018.616140000
2008-10-01	-669671936.954636900
2009-01-01	277233358.469491960
2009-04-01	1227700128.096160000
2009-07-01	791583252.827284000
2009-10-01	832306798.208454000
2010-01-01	800592652.793166000
2010-04-01	290745092.623142000
2010-07-01	272816982.485168040
2010-10-01	61144899.130661696
2011-01-01	132381360.620719980
2011-04-01	-82022579.850189000
2011-07-01	-166907698.907626000
2011-10-01	-27850366.560583300
2012-01-01	-277836489.302260040
2012-04-01	-79683964.656640200
2012-07-01	297417055.464106000
2012-10-01	311204723.124691000
2013-01-01	21134313.996969400
2013-04-01	207603113.681115000
2013-07-01	-63590182.863842400
2013-10-01	141449392.390534000
2014-01-01	232983710.346086030
2014-04-01	392179715.100921000
2014-07-01	157618225.120989980
2014-10-01	104886004.873616000
2015-01-01	-36023345.993697400
2015-04-01	188028115.350437000
2015-07-01	-213445905.734561980
2015-10-01	-99578889.240879400
2016-01-01	220426794.344843000
2016-04-01	103888002.293892000
2016-07-01	43519013.410585200
2016-10-01	120681030.595104010
2017-01-01	296224873.552908000
2017-04-01	100079702.458431990
2017-07-01	-247817516.420882000
2017-10-01	216663231.107676000
2018-01-01	587403501.211249000
2018-04-01	553911436.336579000