Quarter	US Dollars, sum over component sub-periods
2004-01-01	-38810152.800544000
2004-04-01	-16448415.126667498
2004-07-01	-32319089.273008800
2004-10-01	-30192811.120643100
2005-01-01	-38393479.157836800
2005-04-01	-26832337.489770200
2005-07-01	-36114043.807728200
2005-10-01	-45621198.782030300
2006-01-01	-19145469.613674300
2006-04-01	-100583649.285795000
2006-07-01	-40909918.503844500
2006-10-01	-13415056.125942798
2007-01-01	-46889728.249044605
2007-04-01	-102884416.687152000
2007-07-01	-215466060.186176000
2007-10-01	-111058217.535989000
2008-01-01	-239782744.731134000
2008-04-01	-119632951.793423000
2008-07-01	-59860051.195549900
2008-10-01	86121580.345906300
2009-01-01	-66674305.246392295
2009-04-01	-49722386.002209000
2009-07-01	-53591706.776733800
2009-10-01	-57005258.168324310
2010-01-01	-49314298.458638800
2010-04-01	-59163909.335056000
2010-07-01	-49733229.469629600
2010-10-01	-231401199.096809000
2011-01-01	-76017803.628279790
2011-04-01	-84787022.942049610
2011-07-01	-128572954.084780010
2011-10-01	12501991.593265400
2012-01-01	-1861523.346605310
2012-04-01	-51245671.537151700
2012-07-01	-45735296.074777100
2012-10-01	-349736861.978751000
2013-01-01	-81049647.276813500
2013-04-01	-78091011.281626390
2013-07-01	-102598200.776008000
2013-10-01	-189003241.045625000
2014-01-01	-106743385.851145010
2014-04-01	-450886032.299560000
2014-07-01	-110449885.844793000
2014-10-01	-159167796.376565000
2015-01-01	-25262702.173386402
2015-04-01	-71338066.406649800
2015-07-01	-99331321.111189700
2015-10-01	-353347370.284637030
2016-01-01	-121507802.821547000
2016-04-01	-167927320.742432000
2016-07-01	-62465374.920726700
2016-10-01	-302443131.254282000
2017-01-01	-38664992.926051600
2017-04-01	-143592254.978304980
2017-07-01	-58198071.485412000
2017-10-01	-124374361.081329990
2018-01-01	-48516190.228652200
2018-04-01	-221580731.554228000