Quarter	US Dollars, sum over component sub-periods
2004-01-01	-125300530.31872001
2004-04-01	-1176682282.96408000
2004-07-01	-597026716.64301000
2004-10-01	-1204750854.85683010
2005-01-01	-355657036.08772296
2005-04-01	-1303305399.54809000
2005-07-01	-733439506.57924200
2005-10-01	-1305448623.91195000
2006-01-01	-386203509.63141700
2006-04-01	-1559359229.11323000
2006-07-01	-648438835.75948400
2006-10-01	-1609740619.94463000
2007-01-01	942578549.19512300
2007-04-01	-1092040922.93503000
2007-07-01	-1557731428.29889000
2007-10-01	-1740600753.75262000
2008-01-01	-1293978276.33955980
2008-04-01	-1386350420.21664000
2008-07-01	-2132608666.41733980
2008-10-01	-3561254477.82048030
2009-01-01	-1178629511.57056000
2009-04-01	-1003663460.74958000
2009-07-01	-471753748.50173000
2009-10-01	-691234998.65529190
2010-01-01	-777539462.10945610
2010-04-01	-460623846.54948103
2010-07-01	-1539569218.71941000
2010-10-01	-400002324.79121596
2011-01-01	-1643678485.74445990
2011-04-01	-1523783918.50213000
2011-07-01	-614628007.36677000
2011-10-01	-860538172.82539200
2012-01-01	-222677567.96675500
2012-04-01	940349518.65297210
2012-07-01	-169682775.06428000
2012-10-01	-141071249.36780000
2013-01-01	638899331.97963000
2013-04-01	205435350.69717300
2013-07-01	-1706755275.03867000
2013-10-01	149450283.69701100
2014-01-01	-434446095.17476000
2014-04-01	609798319.24958000
2014-07-01	634049112.31443810
2014-10-01	-1137763424.29569980
2015-01-01	813001889.89525700
2015-04-01	-584767438.73985800
2015-07-01	25124361.82083910
2015-10-01	-725722190.59946400
2016-01-01	283138217.33595103
2016-04-01	1534719390.40901000
2016-07-01	-689051045.66759910
2016-10-01	-2881044103.61775970
2017-01-01	-361863190.85815700
2017-04-01	-188171836.16085500
2017-07-01	-1684689315.42234020
2017-10-01	-325230350.17358700
2018-01-01	-1244238587.81672000
2018-04-01	-363199133.20220000