Quarter	US Dollars, sum over component sub-periods
1993-01-01	-178840215.116622000
1993-04-01	-549316334.654746000
1993-07-01	163955290.777673000
1993-10-01	-304313185.468905000
1994-01-01	-414590170.215624030
1994-04-01	-38709087.915450506
1994-07-01	-442548550.340228000
1994-10-01	-893198009.950516100
1995-01-01	-1445969379.104060000
1995-04-01	-717048977.332313100
1995-07-01	-995454604.697965000
1995-10-01	-1165054768.325240100
1996-01-01	88266136.228142800
1996-04-01	-261824411.221593000
1996-07-01	-1417477266.681850200
1996-10-01	-609595067.714326000
1997-01-01	-665909564.104949000
1997-04-01	355526446.450104000
1997-07-01	-33047840.659118798
1997-10-01	1472617860.910530000
1998-01-01	95871281.797962700
1998-04-01	1018862655.009730000
1998-07-01	-259436100.888280000
1998-10-01	912563826.360232000
1999-01-01	472508126.812063000
1999-04-01	996388682.578621000
1999-07-01	1826619150.643819800
1999-10-01	-1533025724.785630000
2000-01-01	-383477912.294458030
2000-04-01	423295941.532868000
2000-07-01	330214029.709401000
2000-10-01	-1053599246.820399900
2001-01-01	521263943.660272060
2001-04-01	739840208.303503000
2001-07-01	458902573.235769030
2001-10-01	23576480.095869597
2002-01-01	-520448618.661573950
2002-04-01	-462391199.325732000
2002-07-01	-1018588686.578620000
2002-10-01	-2024146822.070830000
2003-01-01	-1373465519.919940000
2003-04-01	-33534239.142016403
2003-07-01	-742297400.644549000
2003-10-01	-2696158429.923020000
2004-01-01	2463965171.527120000
2004-04-01	466194800.610863030
2004-07-01	-495178838.210739000
2004-10-01	-2954819146.860009700
2005-01-01	1524872606.822460200
2005-04-01	1426357383.476760100
2005-07-01	-769852196.773316000
2005-10-01	77583628.798964590
2006-01-01	606263512.173290000
2006-04-01	-1261656726.221020200
2006-07-01	-774947350.726795000
2006-10-01	478940815.134636000
2007-01-01	1516359613.697919800
2007-04-01	630213472.814624000
2007-07-01	-3293965094.590580000
2007-10-01	900092255.193488000
2008-01-01	1005589495.036200000
2008-04-01	2059830675.215730000
2008-07-01	-1183255740.168260000
2008-10-01	-4646817580.070020000
2009-01-01	776329598.622294900
2009-04-01	1909024526.533000000
2009-07-01	-1152331908.582950000
2009-10-01	1646995986.051550100
2010-01-01	3634655604.827759700
2010-04-01	2824868476.325740300
2010-07-01	-719050836.472383000
2010-10-01	-1866319121.811320000
2011-01-01	166397805.151502000
2011-04-01	-806098478.531204000
2011-07-01	-1659945016.724580000
2011-10-01	1635903708.021900000
2012-01-01	2374472091.703140000
2012-04-01	3058977737.462390000
2012-07-01	1967148566.949210000
2012-10-01	-1495025566.394790200
2013-01-01	2717566206.017320000
2013-04-01	2118297679.035680300
2013-07-01	1447970713.693140000
2013-10-01	-7769324737.537300000
2014-01-01	5512308166.614220000
2014-04-01	-4668611952.136430000
2014-07-01	619779127.131272100
2014-10-01	-1955239647.035859800
2015-01-01	2567408092.234070000
2015-04-01	-3503520651.349760000
2015-07-01	-5072793037.293170000
2015-10-01	3661684831.198390000
2016-01-01	763813045.087316000
2016-04-01	2953821328.566230000
2016-07-01	-6654941933.216370000
2016-10-01	-1206031677.289540000
2017-01-01	-23950530797.939598000
2017-04-01	-661787840.509343000
2017-07-01	-6744814362.674620000
2017-10-01	2854618874.689290000
2018-01-01	5235455942.302510000
2018-04-01	-3523820702.375930000