Quarter	US Dollars, sum over component sub-periods
2008-01-01	535525054542.22500
2008-04-01	347383475199.26697
2008-07-01	360830552184.46300
2008-10-01	213880240788.03300
2009-01-01	231604001030.38700
2009-04-01	58191880310.32360
2009-07-01	332239242434.54000
2009-10-01	237707662717.40100
2010-01-01	239223581740.12300
2010-04-01	316648948661.40295
2010-07-01	310775534706.47300
2010-10-01	234947557772.37402
2011-01-01	405385969380.28900
2011-04-01	343757828921.50300
2011-07-01	273223239239.79297
2011-10-01	352684550455.64600
2012-01-01	361493346739.47400
2012-04-01	312022588758.19200
2012-07-01	337108277918.05100
2012-10-01	245079043427.47702
2013-01-01	373261915852.83800
2013-04-01	367095967279.20200
2013-07-01	326635012286.90100
2013-10-01	539020662977.95800
2014-01-01	151343793760.60800
2014-04-01	238058093371.50200
2014-07-01	394297588230.86000
2014-10-01	273427963614.47104
2015-01-01	531042225443.09690
2015-04-01	344254951356.40800
2015-07-01	303955652093.07500
2015-10-01	496004878428.92900
2016-01-01	355940330284.65204
2016-04-01	349140963600.32900
2016-07-01	386355580971.58700
2016-10-01	78339363193.62180
2017-01-01	451553049241.36804
2017-04-01	168021554553.39500
2017-07-01	132329661717.93701
2017-10-01	229236489057.92900