Quarter	US Dollars, sum over component sub-periods
2000-01-01	-46854698.79000000000
2000-04-01	6347007.85500000000
2000-07-01	-82614801.54000000000
2000-10-01	130727730.50000000000
2001-01-01	-208427905.90000000000
2001-04-01	96442738.69000000000
2001-07-01	-7693600.43700000000
2001-10-01	-3272505.85100000000
2002-01-01	2278239.27099999970
2002-04-01	113783474.90000000000
2002-07-01	-61627823.30000000400
2002-10-01	171023879.70000002000
2003-01-01	85376012.86000000000
2003-04-01	-179640307.10000000000
2003-07-01	123554925.20000000000
2003-10-01	320178354.59999996000
2004-01-01	-3212412.62400000030
2004-04-01	-201956220.50000000000
2004-07-01	206189463.20000002000
2004-10-01	148903979.60000002000
2005-01-01	-58359911.76000000500
2005-04-01	9663998.07800000000
2005-07-01	43365964.48000000400
2005-10-01	422480842.20000000000
2006-01-01	49802805.50000000000
2006-04-01	72451595.50000000000
2006-07-01	285270222.50000000000
2006-10-01	-11147205.59000000000
2007-01-01	43096763.91000000000
2007-04-01	-48796852.19000000500
2007-07-01	270162984.00000000000
2007-10-01	538170877.70000000000
2008-01-01	184931798.29999998000
2008-04-01	208932134.60000002000
2008-07-01	157001864.79999998000
2008-10-01	342829018.79999995000
2009-01-01	-418721084.29999995000
2009-04-01	-172664739.00000000000
2009-07-01	-51876410.43000000000
2009-10-01	412959228.90000004000
2010-01-01	-239387640.10000000000
2010-04-01	48037486.96000000000
2010-07-01	484935557.70000000000
2010-10-01	590837780.90000000000
2011-01-01	-78082575.08000000000
2011-04-01	2464545.65800000000
2011-07-01	257161226.70000000000
2011-10-01	836587466.90000000000
2012-01-01	188008251.10000000000
2012-04-01	-340532204.20000005000
2012-07-01	362098867.70000005000
2012-10-01	843826097.50000000000
2013-01-01	26317795.75000000000
2013-04-01	214166434.70000000000
2013-07-01	-105068163.70000000000
2013-10-01	468283187.10000000000
2014-01-01	69231929.53999999000
2014-04-01	108676126.10000001000
2014-07-01	48627789.36000000000
2014-10-01	34663420.31000000000
2015-01-01	-17356191.28000000000
2015-04-01	835838.45600000000
2015-07-01	230565537.79999998000
2015-10-01	294182767.40000000000
2016-01-01	-58041839.73000000000
2016-04-01	-317089445.80000000000
2016-07-01	-66271650.42999999000
2016-10-01	231384387.00000000000
2017-01-01	-22190190.51000000000
2017-04-01	-506107.25700000004
2017-07-01	-75512970.44000000000
2017-10-01	292963705.10000000000
2018-01-01	988411965.30000010000
2018-04-01	-12567485.57000000000