Quarter	US Dollars, sum over component sub-periods
1996-01-01	-1614671887.60232020
1996-04-01	-668858184.59687900
1996-07-01	-794818890.94985800
1996-10-01	-515578317.03642000
1997-01-01	-2050266558.89366030
1997-04-01	-840495908.11105300
1997-07-01	-1047532644.57020010
1997-10-01	-517611159.90568500
1998-01-01	-5111777175.49907000
1998-04-01	-312291024.63974196
1998-07-01	-7039416816.51708000
1998-10-01	-704396469.35665200
1999-01-01	-7130510182.36678000
1999-04-01	-681864439.95656800
1999-07-01	-4988839083.05741000
1999-10-01	-815256689.89387390
2000-01-01	-4369999881.13919900
2000-04-01	-745023284.91791600
2000-07-01	-2679855947.93500000
2000-10-01	-726619975.20451900
2001-01-01	-1168687002.75098000
2001-04-01	-200420013.50546098
2001-07-01	-630895559.34138190
2001-10-01	-436923341.23230300
2002-01-01	-1449439921.76002000
2002-04-01	-326219438.76096100
2002-07-01	-499423939.49194600
2002-10-01	-359961902.67383100
2003-01-01	-1123658319.25810000
2003-04-01	-315834293.16346900
2003-07-01	-370334062.00877800
2003-10-01	-450855498.60152200
2004-01-01	-1971363168.69906000
2004-04-01	-201234920.66768700
2004-07-01	-681051126.76440690
2004-10-01	-1508212144.58865000
2005-01-01	-1056561058.58460000
2005-04-01	-234779847.28661302
2005-07-01	-269744314.36946800
2005-10-01	-2391346317.30336000
2006-01-01	-2160547364.22800970
2006-04-01	-1122279854.37721010
2006-07-01	-136233977.03711600
2006-10-01	-589516344.69743310
2007-01-01	-1981620525.78860000
2007-04-01	-179855324.65745600
2007-07-01	-316283800.69220203
2007-10-01	-365137109.61465500
2008-01-01	-934704903.71317210
2008-04-01	-115167893.45172600
2008-07-01	-1000920486.39278010
2008-10-01	-1759666162.82477000
2009-01-01	-661410274.64841600
2009-04-01	-174976886.73522502
2009-07-01	-1165445724.20680000
2009-10-01	-563477717.91513000
2010-01-01	-971524570.18840000
2010-04-01	-740259706.10849600
2010-07-01	-1521631426.42735000
2010-10-01	-506558440.23499100
2011-01-01	-792019946.96304300
2011-04-01	164181000.23118502
2011-07-01	-481516828.84982200
2011-10-01	1638730854.07032000
2012-01-01	762998577.93074610
2012-04-01	515108563.12791600
2012-07-01	-970864030.74908200
2012-10-01	-101247219.80920100
2013-01-01	-2259582712.60806000
2013-04-01	-2957929703.30971000
2013-07-01	-794331875.37230190
2013-10-01	-282674922.38623300
2014-01-01	-859287280.08191800
2014-04-01	-367519940.19996500
2014-07-01	-659303247.65725400
2014-10-01	-280053557.60594300
2015-01-01	-1131669249.57347000
2015-04-01	-221938476.66844597
2015-07-01	-485410895.82610196
2015-10-01	-313735724.13796400
2016-01-01	-360273721.85248000
2016-04-01	-211501155.52220300
2016-07-01	-781730403.85099000
2016-10-01	-689174495.05043210
2017-01-01	-515195597.65493600
2017-04-01	-1351934221.74183000
2017-07-01	-252761927.47499800
2017-10-01	-466955659.05239200
2018-01-01	-622578921.61155700
2018-04-01	-685121654.57769800
2018-07-01	-269798201.07622800