Quarter	US Dollars, sum over component sub-periods
1982-01-01	-268822718.146141050
1982-04-01	-265208307.653197000
1982-07-01	-1113733055.792680000
1982-10-01	-1202503875.405380000
1983-01-01	-176422785.872562000
1983-04-01	501878371.703431960
1983-07-01	-461628288.023064000
1983-10-01	-658079534.728100100
1984-01-01	391310932.357951000
1984-04-01	316347444.998022000
1984-07-01	-167736138.679529000
1984-10-01	-535876940.653451000
1985-01-01	120827714.927616000
1985-04-01	15220613.588549301
1985-07-01	-1445955856.996150000
1985-10-01	-443678229.718501000
1986-01-01	365329110.713216000
1986-04-01	533863403.335809950
1986-07-01	-483432353.841945000
1986-10-01	-529774035.856761000
1987-01-01	-118306730.246072000
1987-04-01	755356195.559907000
1987-07-01	139444257.922078000
1987-10-01	-667211165.027327000
1988-01-01	-405766008.398312030
1988-04-01	-193311251.565996000
1988-07-01	-705354297.136863000
1988-10-01	-988353813.692297900
1989-01-01	-54597883.495707300
1989-04-01	-3055739.726845520
1989-07-01	-751183385.925400000
1989-10-01	-7669836004.968300000
1990-01-01	290266857.254013960
1990-04-01	-5206596644.587240000
1990-07-01	-723460349.212871100
1990-10-01	-5744121977.037720000
1991-01-01	3922159708.960030000
1991-04-01	-2986989482.852840000
1991-07-01	800296029.899178000
1991-10-01	-1176015652.889469900
1992-01-01	1704877068.355960100
1992-04-01	-2937040244.962360000
1992-07-01	-5032969752.499740000
1992-10-01	3844295822.006580000
1993-01-01	62162971.674964294
1993-04-01	-5813101257.826430000
1993-07-01	-2043734426.285980000
1993-10-01	-466925981.891186000
1994-01-01	2262344815.598210000
1994-04-01	-1473312310.329180000
1994-07-01	-2491342998.874150000
1994-10-01	-1890937196.123950000
1995-01-01	-22646072.713154703
1995-04-01	2280632456.428139700
1995-07-01	2035912450.448930000
1995-10-01	1098057943.480760000
1996-01-01	-1303177912.118150000
1996-04-01	5943503605.316530000
1996-07-01	856885175.747573000
1996-10-01	1019712413.290540000
1997-01-01	489740639.572685000
1997-04-01	-861233373.243737000
1997-07-01	2735670729.647630000
1997-10-01	-3075710333.938870000
1998-01-01	-1648093357.931260000
1998-04-01	-917690005.543705000
1998-07-01	2866083211.273760000
1998-10-01	3088757500.677440000
1999-01-01	4531192433.904059000
1999-04-01	-1185036722.886690100
1999-07-01	5407359356.693740000
1999-10-01	-1477022982.598100000
2000-01-01	4714801575.804541000
2000-04-01	-161861682.452605000
2000-07-01	3025591548.141410000
2000-10-01	-4012995444.252360000
2001-01-01	1725522001.359250000
2001-04-01	-1195703963.851460000
2001-07-01	1995882609.377590000
2001-10-01	2588542727.175090000
2002-01-01	3741789838.058990000
2002-04-01	3602639343.172010000
2002-07-01	1029288140.411850000
2002-10-01	-779662669.300137000
2003-01-01	4544577310.758350000
2003-04-01	4568499111.598200000
2003-07-01	2424205157.952380000
2003-10-01	10573381753.441599000
2004-01-01	12005502879.001100000
2004-04-01	1728766930.058290000
2004-07-01	9181326065.028278000
2004-10-01	2714888733.146529700
2005-01-01	5175334772.646710000
2005-04-01	4605017308.382580000
2005-07-01	7750661457.320640000
2005-10-01	10918587793.165400000
2006-01-01	4792587158.989590000
2006-04-01	4036521589.018860300
2006-07-01	6433047957.728120000
2006-10-01	19035122779.708200000
2007-01-01	-5546447245.638180000
2007-04-01	10244115716.022600000
2007-07-01	9321942833.470879000
2007-10-01	-6095815069.731950000
2008-01-01	-3643693334.262400000
2008-04-01	-10978134390.594799000
2008-07-01	-3869930680.158660000
2008-10-01	227405527.137988000
2009-01-01	-4208655829.382830000
2009-04-01	12530728431.298700000
2009-07-01	3506894372.987169700
2009-10-01	-5395653956.847960000
2010-01-01	19311344896.507797000
2010-04-01	7051596776.591990000
2010-07-01	8272071676.952480000
2010-10-01	245668887.499883980
2011-01-01	20858987850.354397000
2011-04-01	1566148645.064880000
2011-07-01	7619799181.062510000
2011-10-01	15026708715.952200000
2012-01-01	-574507993.201557000
2012-04-01	7880003931.374660500
2012-07-01	-11779125253.908400000
2012-10-01	13460442549.695200000
2013-01-01	5202403101.257549000
2013-04-01	16517596814.740900000
2013-07-01	4409455532.828950000
2013-10-01	-5409689197.187170000
2014-01-01	-7423042205.503190000
2014-04-01	-4005973546.388550000
2014-07-01	3122504556.995600000
2014-10-01	22282840901.156700000
2015-01-01	975636770.386694100
2015-04-01	9390875681.391470000
2015-07-01	2553632694.151700000
2015-10-01	-2746132960.432750000
2016-01-01	-6479145686.288020000
2016-04-01	-10998409966.046700000
2016-07-01	-1543104282.167219900
2016-10-01	1492078770.571410000
2017-01-01	-14214444955.615400000
2017-04-01	15440002166.709100000
2017-07-01	-3182800675.798600000
2017-10-01	13098308058.195900000
2018-01-01	-8368483334.212300000
2018-04-01	-1088866380.904610000