Quarter	US Dollars, sum over component sub-periods
2000-01-01	-49945461.914125500
2000-04-01	43147811.957371400
2000-07-01	-71315626.838235800
2000-10-01	-246584665.237874000
2001-01-01	-88607831.880934400
2001-04-01	-197317211.343610020
2001-07-01	-112731398.635582000
2001-10-01	-250150576.222280000
2002-01-01	-68048695.476727300
2002-04-01	-74018719.176322610
2002-07-01	-209560552.267000000
2002-10-01	-263799541.660435970
2003-01-01	88952387.679944290
2003-04-01	-246533340.362300000
2003-07-01	-500574974.204641040
2003-10-01	-224542072.227971020
2004-01-01	-108358016.107183010
2004-04-01	-259204688.592956000
2004-07-01	-586852303.134904000
2004-10-01	-343445728.287649000
2005-01-01	-287689861.816495000
2005-04-01	-378213106.928490000
2005-07-01	-991332103.808596000
2005-10-01	-559165805.170288000
2006-01-01	-751458428.413782000
2006-04-01	-933447502.438630000
2006-07-01	-1587141266.506780100
2006-10-01	-1254562458.749660000
2007-01-01	-1246565005.580910200
2007-04-01	-1466158926.187900000
2007-07-01	-2002456131.164860000
2007-10-01	-820951520.650529000
2008-01-01	-731682256.892005900
2008-04-01	-1072497873.808139900
2008-07-01	-762652036.480655100
2008-10-01	-80413362.508332400
2009-01-01	1303781407.519260000
2009-04-01	1849698644.321870000
2009-07-01	-1620316622.213250000
2009-10-01	680037526.067298000
2010-01-01	-311649389.063083000
2010-04-01	554711031.978364000
2010-07-01	-245792658.748429000
2010-10-01	157617962.203484000
2011-01-01	331635779.699328000
2011-04-01	378455061.414030000
2011-07-01	-244703660.262875000
2011-10-01	1556835490.736600000
2012-01-01	-323705721.026690000
2012-04-01	-7711351.418384531
2012-07-01	413634644.363944950
2012-10-01	1348553800.207000000
2013-01-01	88499939.862309500
2013-04-01	235022392.846544980
2013-07-01	-264959095.266010020
2013-10-01	238015804.503303000
2014-01-01	1086800484.143800000
2014-04-01	504622850.199787000
2014-07-01	-260931011.334748980
2014-10-01	-3745928.745486290
2015-01-01	-1411664871.128020000
2015-04-01	-513206150.132957000
2015-07-01	566965687.107431000
2015-10-01	-1007825900.998350000
2016-01-01	-1155036402.366979800
2016-04-01	285692006.308203040
2016-07-01	377164782.891738000
2016-10-01	-359888073.381828000
2017-01-01	134260194.488009000
2017-04-01	552088028.946518000
2017-07-01	-1195631429.935820000
2017-10-01	-1610844022.583160000
2018-01-01	1563132329.583070000
2018-04-01	1559290473.472220000