Quarter	US Dollars, sum over component sub-periods
1982-01-01	-100241934.457867000
1982-04-01	-160208849.961638000
1982-07-01	8447216.875907110
1982-10-01	237991296.652194000
1983-01-01	24161957.667321000
1983-04-01	24145351.215972700
1983-07-01	-46495856.979015596
1983-10-01	643550998.253973000
1984-01-01	257903773.571389020
1984-04-01	-378917547.621003000
1984-07-01	513431880.196231960
1984-10-01	-433870783.461540000
1985-01-01	73251802.174867390
1985-04-01	1763688599.573150000
1985-07-01	-413351534.233181000
1985-10-01	132233009.607388990
1986-01-01	533952931.585650000
1986-04-01	-191440079.789950000
1986-07-01	171332214.451553000
1986-10-01	-371520467.227977040
1987-01-01	1057692897.420730100
1987-04-01	512988279.901160000
1987-07-01	-233495290.299846000
1987-10-01	-462292526.539874000
1988-01-01	540854362.634623000
1988-04-01	245330772.386706000
1988-07-01	21341329.219909500
1988-10-01	-192920938.617358000
1989-01-01	-608964219.395599000
1989-04-01	1305870372.267430000
1989-07-01	2705668275.547930200
1989-10-01	-2040791041.351360000
1990-01-01	1316364263.009100000
1990-04-01	1715871867.598660000
1990-07-01	-747301266.363318900
1990-10-01	5505311180.401780000
1991-01-01	1665140834.631160000
1991-04-01	3476446726.536310000
1991-07-01	-3906500308.664650400
1991-10-01	-1816453546.011619800
1992-01-01	6132184005.490990000
1992-04-01	45127159.223292604
1992-07-01	-3926602697.272900000
1992-10-01	4583164026.094379000
1993-01-01	49517399.278558300
1993-04-01	4017036654.513790000
1993-07-01	-1292396726.174090000
1993-10-01	-251477861.988318030
1994-01-01	-536869906.571318000
1994-04-01	3335390453.806620000
1994-07-01	-627395308.647663000
1994-10-01	155295014.313721980
1995-01-01	-593815283.897631000
1995-04-01	1279566383.005590000
1995-07-01	1921058253.811869900
1995-10-01	-4287455252.598540000
1996-01-01	-2276616567.531960000
1996-04-01	-1464263971.140359900
1996-07-01	-275831111.982068000
1996-10-01	-2204985884.875180200
1997-01-01	-2698052852.767810000
1997-04-01	-1033609947.345459900
1997-07-01	-384773511.557140000
1997-10-01	-2508553432.204380000
1998-01-01	-542385230.922328000
1998-04-01	2984318161.264140000
1998-07-01	3045041456.990340000
1998-10-01	-2151643921.899029700
1999-01-01	-763580106.469836000
1999-04-01	892814741.421346000
1999-07-01	1530064409.718420000
1999-10-01	310749977.966335000
2000-01-01	-348490895.076976950
2000-04-01	-203315442.020019980
2000-07-01	139120015.041397000
2000-10-01	587386026.719197000
2001-01-01	-122709709.816244000
2001-04-01	-1377338366.432040000
2001-07-01	-986773145.171221000
2001-10-01	1441972232.806870000
2002-01-01	919867438.122876000
2002-04-01	453128713.127708000
2002-07-01	-468439616.558979030
2002-10-01	-257578910.627498980
2003-01-01	48398801.426505000
2003-04-01	1118298800.674080000
2003-07-01	251669269.323830000
2003-10-01	648401399.978654000
2004-01-01	400981673.554597000
2004-04-01	222764983.519666020
2004-07-01	-847348870.684792000
2004-10-01	-957265423.945718000
2005-01-01	-530625906.458296950
2005-04-01	561350899.494008000
2005-07-01	-310583816.252390000
2005-10-01	991104441.959110000
2006-01-01	-438883021.888786000
2006-04-01	421225762.604915000
2006-07-01	-135715981.166364000
2006-10-01	1684437902.639670100
2007-01-01	293825993.227391000
2007-04-01	632277333.257818000
2007-07-01	-215181118.003897000
2007-10-01	-1300646282.552560000
2008-01-01	-958178826.243791900
2008-04-01	-188627738.670014000
2008-07-01	9508791637.677380000
2008-10-01	-7455954626.957460000
2009-01-01	-821360568.080444900
2009-04-01	10147847415.453300000
2009-07-01	4959799681.286450000
2009-10-01	745178005.203237900
2010-01-01	634413261.251939000
2010-04-01	7846774593.287900000
2010-07-01	-4527502271.232100000
2010-10-01	-4917062046.450891000
2011-01-01	2236682373.622110000
2011-04-01	-1735708207.556089900
2011-07-01	-518549076.888941050
2011-10-01	635407652.984240000
2012-01-01	876880621.202376000
2012-04-01	591975881.473626000
2012-07-01	1335198.963263250
2012-10-01	-984800299.702066100
2013-01-01	15304852463.040401000
2013-04-01	1541034093.212289800
2013-07-01	-510526764.643413000
2013-10-01	-1512483631.761670000
2014-01-01	1139817510.564380000
2014-04-01	-1265108086.753860000
2014-07-01	94730416.271063800
2014-10-01	182934212.802405980
2015-01-01	873146848.571440900
2015-04-01	310676837.038089000
2015-07-01	-121354456.300840000
2015-10-01	246995461.453843000
2016-01-01	2758356808.458050300
2016-04-01	480183099.857748030
2016-07-01	1319442171.002900100
2016-10-01	-230614102.049027980
2017-01-01	-914903063.809359000
2017-04-01	464561613.215023000
2017-07-01	889695015.961152000
2017-10-01	-17069801.804884400
2018-01-01	75330651.735572500
2018-04-01	406839340.793648000