Quarter	US Dollars, sum over component sub-periods
2008-01-01	62924712.734504700
2008-04-01	9372348.552373550
2008-07-01	-8997057.286598940
2008-10-01	182558618.714019000
2009-01-01	22118006.067666900
2009-04-01	36769217.693675300
2009-07-01	28608474.742373000
2009-10-01	32487011.259167800
2010-01-01	9686378.776946420
2010-04-01	12706864.732399500
2010-07-01	0.000000000
2010-10-01	-6786602.049392870
2011-01-01	-10937803.931089400
2011-04-01	-2878594.348733610
2011-07-01	31063211.950537402
2011-10-01	-4041982.963012650
2012-01-01	-14425519.715160800
2012-04-01	-5129412.347759290
2012-07-01	-15016174.784449600
2012-10-01	-31147285.968971500
2013-01-01	-83128165.870955500
2013-04-01	-56158423.903232400
2013-07-01	-34439764.960035200
2013-10-01	-51722320.405158700
2014-01-01	-45226249.655416705
2014-04-01	-63077856.274973400
2014-07-01	-64901622.108643100
2014-10-01	-73669931.994563700
2015-01-01	-65292314.613576400
2015-04-01	-66362864.241330600
2015-07-01	-67813542.967751600
2015-10-01	-98484615.732737900
2016-01-01	-65025904.331728790
2016-04-01	-45168696.649518210
2016-07-01	-11158721.387329500
2016-10-01	-5387546.008710001
2017-01-01	-25573370.378668300
2017-04-01	-13197323.401112000
2017-07-01	-14093887.189813200
2017-10-01	-56520842.897654600
2018-01-01	14746531.411161100
2018-04-01	-63133991.668470300