Quarter	US Dollars, sum over component sub-periods
1999-01-01	-6624475975.09643100
1999-04-01	-1899937739.47495990
1999-07-01	-5978524610.48775000
1999-10-01	-3503769144.26683000
2000-01-01	-3573559561.82595970
2000-04-01	-168823170.54256698
2000-07-01	4453147078.66586000
2000-10-01	-413810206.58815600
2001-01-01	-373602151.08046705
2001-04-01	176349691.02207902
2001-07-01	8895580218.82156000
2001-10-01	-147453225.20541600
2002-01-01	-949906835.78520100
2002-04-01	-1881691435.34853980
2002-07-01	-1829601882.55343990
2002-10-01	-3499808347.30420000
2003-01-01	-9189761913.34982000
2003-04-01	-3966006485.74360000
2003-07-01	-601521361.40896500
2003-10-01	10147718235.16310000
2004-01-01	-934271640.75881790
2004-04-01	375725240.96863800
2004-07-01	3752387493.08555000
2004-10-01	-405128934.05539805
2005-01-01	-4762642621.13880000
2005-04-01	178893325.67279500
2005-07-01	14525622351.59410000
2005-10-01	-3868295692.59924000
2006-01-01	-3993569404.29424000
2006-04-01	-4568551220.86846100
2006-07-01	1022155101.08833990
2006-10-01	-529391569.85009200
2007-01-01	-1980130668.84001000
2007-04-01	1482595673.29947000
2007-07-01	1003993310.43282000
2007-10-01	-1092768345.61106010
2008-01-01	-280222706.94817000
2008-04-01	-227547495.65609500
2008-07-01	4187581826.56673050
2008-10-01	-2078843734.15829000
2009-01-01	-2479005005.45598030
2009-04-01	44488577.11804020
2009-07-01	-519932402.17239500
2009-10-01	-1547269874.54570000
2010-01-01	-174194742.20052700
2010-04-01	-61595670.19159250
2010-07-01	-3123396536.77590040
2010-10-01	309591839.40914303
2011-01-01	-602769952.54109800
2011-04-01	-1239161835.24531980
2011-07-01	4129946132.81007960
2011-10-01	4018832095.30715040
2012-01-01	67422899.79247160
2012-04-01	544626223.38535000
2012-07-01	-401289613.15792200
2012-10-01	9687913000.07536000
2013-01-01	-5470308534.83558000
2013-04-01	-1391187532.67169000
2013-07-01	-1195472459.56745000
2013-10-01	-1215505860.20081000
2014-01-01	2699542086.61330000
2014-04-01	-577867880.41796700
2014-07-01	1426860624.32283000
2014-10-01	1531274779.43144000
2015-01-01	-324526834.53744200
2015-04-01	-1639499849.44338000
2015-07-01	-94590221.89305250
2015-10-01	424509569.10885000
2016-01-01	-4863549760.64396000
2016-04-01	552328980.30640010
2016-07-01	-2374245972.39638000
2016-10-01	-236602685.23294800
2017-01-01	-51274038.13077590
2017-04-01	-3851219719.44726000
2017-07-01	24783578937.29049700
2017-10-01	-1060711208.98825000
2018-01-01	-422922033.48074996