Quarter US Dollars, sum over component sub-periods 2006-01-01 -10472732640.0000000 2006-04-01 -588530780.4000000 2006-07-01 -238137539.4000000 2006-10-01 377989282.5000000 2007-01-01 573231607.0000000 2007-04-01 816299036.3000000 2007-07-01 2564214220.0000000 2007-10-01 1920901407.0000000 2008-01-01 1425328212.0000000 2008-04-01 3500869458.0000000 2008-07-01 2393990827.0000000 2008-10-01 -1137577116.0000000 2009-01-01 431282618.4000000 2009-04-01 156069414.8000000 2009-07-01 2128956209.9999998 2009-10-01 -1807729174.0000000 2010-01-01 1105878412.0000000 2010-04-01 786561446.7000000 2010-07-01 914136413.5000000 2010-10-01 -472499683.3000000 2011-01-01 1472870951.0000000 2011-04-01 3886642071.0000000 2011-07-01 4444855619.0000000 2011-10-01 1214385865.0000000 2012-01-01 -328966114.2000000 2012-04-01 537071066.5000000 2012-07-01 -510215781.7000000 2012-10-01 -1703400698.0000000 2013-01-01 369671669.9000000 2013-04-01 -889433025.1000000 2013-07-01 -59864110.8900000 2013-10-01 -583238396.9000000 2014-01-01 -482970043.0000000 2014-04-01 10244251190.0000000 2014-07-01 -2055410128.0000000 2014-10-01 3258346503.0000000 2015-01-01 3408515676.0000000 2015-04-01 3305493596.0000000 2015-07-01 3404648340.0000000 2015-10-01 940883254.4000001 2016-01-01 3544119921.0000000 2016-04-01 -4084697543.0000000 2016-07-01 -2114898044.0000000 2016-10-01 -2886727709.0000000 2017-01-01 500331218.3000000 2017-04-01 580602918.3000001 2017-07-01 5940573400.0000000 2017-10-01 4934272580.0000000 2018-01-01 3762130356.0000000 2018-04-01 20111458720.0000000