Quarter	US Dollars, sum over component sub-periods
2005-01-01	-98598103065.581700
2005-04-01	-123160892279.695000
2005-07-01	-157980082319.570980
2005-10-01	-171758303806.365000
2006-01-01	-158622108018.259000
2006-04-01	-171437425318.703000
2006-07-01	-195569164927.146000
2006-10-01	-150127594051.719000
2007-01-01	-132429971093.230010
2007-04-01	-141300367399.405000
2007-07-01	-171170268520.727000
2007-10-01	-184118834411.241000
2008-01-01	-156781204260.535000
2008-04-01	-177311414084.168000
2008-07-01	-247631353582.852000
2008-10-01	-195212314541.464000
2009-01-01	-100660831575.717010
2009-04-01	-49589390520.916595
2009-07-01	-101886204391.544000
2009-10-01	-74894328108.164600
2010-01-01	-80153422584.721010
2010-04-01	-110480054924.735000
2010-07-01	-142360203185.159030
2010-10-01	-110403880986.704000
2011-01-01	-132399859414.656000
2011-04-01	-184968449383.336000
2011-07-01	-197393723025.699980
2011-10-01	-173130629126.368000
2012-01-01	-154732583716.529020
2012-04-01	-155708452061.960020
2012-07-01	-166925527885.338000
2012-10-01	-129778139442.149000
2013-01-01	-105817986531.488000
2013-04-01	-88449350047.498100
2013-07-01	-152439555456.965970
2013-10-01	-115969812182.407000
2014-01-01	-104398015537.499000
2014-04-01	-109748490416.996000
2014-07-01	-155174055131.710000
2014-10-01	-113856624394.458010
2015-01-01	-81184447869.605500
2015-04-01	-68581767111.303200
2015-07-01	-112374649233.789000
2015-10-01	-82956566584.588900
2016-01-01	-66922719673.422600
2016-04-01	-45618691101.446690
2016-07-01	-108959353826.086990
2016-10-01	-59331020790.679890
2017-01-01	-73809917723.684500
2017-04-01	-82345636736.574900
2017-07-01	-102749594322.547000
2017-10-01	-92866816156.023790
2018-01-01	-95255422420.120510
2018-04-01	-87317789456.724900