Quarter	US Dollars, sum over component sub-periods
1982-01-01	-20048386.8915734000
1982-04-01	-20322475.6822373000
1982-07-01	-20468256.2762365000
1982-10-01	-15547855.4832952000
1983-01-01	-17142841.4734624000
1983-04-01	-18175346.7944410000
1983-07-01	-17163759.8765512000
1983-10-01	-24761679.5559046980
1984-01-01	-41917206.9940846040
1984-04-01	-34594647.5580151000
1984-07-01	-14978563.7658544000
1984-10-01	-76619489.6925728000
1985-01-01	-125466636.1257300100
1985-04-01	-34358296.8506223040
1985-07-01	-29193175.5223779980
1985-10-01	-30082049.6202677000
1986-01-01	-40232104.5796520040
1986-04-01	-31420085.7171596030
1986-07-01	-50079516.6194238000
1986-10-01	-56746033.2765623000
1987-01-01	-38103985.8454880940
1987-04-01	-35077478.2976968960
1987-07-01	-19587487.7348739000
1987-10-01	-47552889.7925428000
1988-01-01	-39240745.6681495000
1988-04-01	-57389277.8086550000
1988-07-01	-71812793.9443670000
1988-10-01	-60674123.1907879040
1989-01-01	-59345525.5388123000
1989-04-01	-61725942.4822795000
1989-07-01	-95811083.8609006000
1989-10-01	-76872144.3270824000
1990-01-01	-70412072.3759038000
1990-04-01	-52245045.3749879000
1990-07-01	-81985312.2152092000
1990-10-01	-145712039.4709170200
1991-01-01	-31845994.4070414000
1991-04-01	-7705460.0514288405
1991-07-01	-11852725.5613030000
1991-10-01	-10603833.7100382000
1992-01-01	-207625663.3216270000
1992-04-01	-246226134.9255699800
1992-07-01	-221198618.6130400000
1992-10-01	-243937169.1811440000
1993-01-01	-155740207.4083690000
1993-04-01	-197596820.1719350200
1993-07-01	-188018573.3651000000
1993-10-01	-140710749.4958840000
1994-01-01	-149949013.4400360000
1994-04-01	-418877886.8034520000
1994-07-01	-165967945.0201670000
1994-10-01	-191914799.3483989800
1995-01-01	-142792302.7961190000
1995-04-01	-178037353.4194800300
1995-07-01	-131699478.8104950000
1995-10-01	-101483544.9400160000
1996-01-01	-119154436.2330500000
1996-04-01	-863883065.1402240000
1996-07-01	-240560904.2204270000
1996-10-01	-246694958.4707600200
1997-01-01	-100445696.5864160000
1997-04-01	-330074510.0169440000
1997-07-01	-120385342.2025160000
2002-07-01	-7354342.1029737400
2003-01-01	-22562726.2688778970
2003-04-01	-27211937.4830692000
2003-07-01	-59324674.0280184000
2003-10-01	63017006.4771430000
2004-01-01	-15239208.4961366990
2004-04-01	-46370948.6687890960
2004-07-01	18290026.0412504000
2004-10-01	73204342.0655604900
2005-01-01	44892452.9130931050
2005-04-01	13934726.6362591000
2005-07-01	156398810.6159830000
2005-10-01	109927512.1747510000
2006-01-01	-291816679.4616730000
2006-04-01	-74214680.2535618000
2006-07-01	-5936711.2819467600
2006-10-01	-221729479.9316069800
2007-01-01	-102318230.7644680000
2007-04-01	-131026847.7854100200
2007-07-01	-125695453.0684830100
2007-10-01	-196538641.3779240000
2008-01-01	-105667425.4490410100
2008-04-01	-98320122.1917152000
2008-07-01	-145617023.5478919700
2008-10-01	-173725011.1544290200
2009-01-01	-66436197.0130182000
2009-04-01	-122986591.7895979900
2009-07-01	-169539966.9448060000
2009-10-01	-73218984.2308487000
2010-01-01	-4452022.8859785200
2010-04-01	-256440888.4633119700
2010-07-01	-24535572.1938536000
2010-10-01	-190551812.5598980000
2011-01-01	-120651556.6098150000
2011-04-01	-335603281.0853320400
2011-07-01	-163996164.2811360000
2011-10-01	-360123665.1367260000
2012-01-01	-57065422.4413311000
2012-04-01	-117214392.4883319900
2012-07-01	-153844591.6559990000
2012-10-01	-371162698.9248500500
2013-01-01	-3730881.3252310200
2013-04-01	-94140399.5556420100
2013-07-01	-293495655.7277379600
2013-10-01	-291411423.5187960000
2014-01-01	19022734.5725127000
2014-04-01	-88351463.1741139000
2014-07-01	-156636311.4026100000
2014-10-01	-300044415.2586930000
2015-01-01	-55390215.6586534000
2015-04-01	-28988584.4119670000
2015-07-01	-212517716.4763009800
2015-10-01	-184275794.4910520000
2016-01-01	13367112.0746101000
2016-04-01	77716087.6989455000
2016-07-01	-92234217.9302990000
2016-10-01	-162591237.4158620000
2017-01-01	-180067265.5899130000
2017-04-01	25550320.9419164000
2017-07-01	22730779.9962454000
2017-10-01	7332802.1837883900
2018-01-01	33658376.3073833960
2018-04-01	25153424.9271172000