Quarter	US Dollars, sum over component sub-periods
1960-01-01	-5606329.381430440
1960-04-01	-2806197.280907360
1960-07-01	-2810332.197566450
1960-10-01	-5621795.242919790
1961-01-01	-8404484.846015660
1961-04-01	-5587925.372427260
1961-07-01	-11201725.394299200
1961-10-01	-8439493.329208450
1962-01-01	-11253461.248169300
1962-04-01	-5623062.925109300
1962-07-01	-8411894.508556370
1962-10-01	-8407099.403121410
1963-01-01	-11211729.113040900
1963-04-01	-11201999.885593000
1963-07-01	-13999497.362055400
1963-10-01	-8393299.964380520
1964-01-01	-13990833.224738800
1964-04-01	-8393695.506488580
1964-07-01	-16723785.983412998
1964-10-01	-8360188.891964500
1965-01-01	-13965162.338438300
1965-04-01	-11181060.863155200
1965-07-01	-13964656.719974600
1965-10-01	-11214666.615777300
1966-01-01	-14004639.307507600
1966-04-01	-11168263.562390900
1966-07-01	-13945166.674961200
1966-10-01	-13954499.586521002
1967-01-01	-16762390.938627198
1967-04-01	-16774776.685324302
1967-07-01	-19498728.181511500
1967-10-01	-15612103.480991400
1968-01-01	-16842876.979296498
1968-04-01	-16743613.270295700
1968-07-01	-14337394.676513000
1968-10-01	-14322786.545217800
1969-01-01	-16730686.105932400
1969-04-01	-14339383.068614101
1969-07-01	-11933317.481114100
1969-10-01	-11973479.700326800
1970-01-01	-14422186.861513000
1970-04-01	-12013473.254417700
1970-07-01	-14328187.924503000
1970-10-01	-11947495.440958701
1971-01-01	-14484304.329034200
1971-04-01	-12093166.528897600
1971-07-01	-14641467.075016000
1971-10-01	-15019385.646221000
1972-01-01	-20790726.601328798
1972-04-01	-20793823.264112000
1972-07-01	-22001945.623909700
1972-10-01	-23641191.769516600
1973-01-01	-19338318.795422100
1973-04-01	-30364191.683608900
1973-07-01	-24782934.603515600
1973-10-01	-21396454.249659900
1974-01-01	-22801722.451765300
1974-04-01	-16782114.033787600
1974-07-01	-21158065.384520300
1974-10-01	-18639462.374732000
1975-01-01	-21543663.490183800
1975-04-01	-23234577.075411100
1975-07-01	-19172341.446790400
1975-10-01	-16342980.395857200
1976-01-01	-9992199.138016920
1976-04-01	-7221915.328777621
1976-07-01	-7062392.627793880
1976-10-01	1649954.112490390
1977-01-01	15421905.106293700
1977-04-01	-6876269.154219951
1977-07-01	-10410829.499097900
1977-10-01	21758592.943809900
1978-01-01	-44364874.963070600
1978-04-01	-40378905.114384300
1978-07-01	-36670261.086729705
1978-10-01	-29748078.269842397
1979-01-01	-56429231.755684300
1979-04-01	-56169468.893167000
1979-07-01	-60239567.119377800
1979-10-01	-45328789.329970300
1980-01-01	22528730.230514403
1980-04-01	-77615795.225156900
1980-07-01	-2381642.617192340
1980-10-01	50103260.256031200
1981-01-01	-106059477.047798000
1981-04-01	-76853318.466942000
1981-07-01	-60592644.802286100
1981-10-01	69650748.150834600
1982-01-01	-25835830.868300100
1982-04-01	-12457656.223969400
1982-07-01	-5174154.948366990
1982-10-01	49428826.868164000
1983-01-01	7658979.572834740
1983-04-01	0.000000000
1983-07-01	72466305.100371900
1983-10-01	32324553.905546900
1984-01-01	74604770.705574100
1984-04-01	-6982597.709535981
1984-07-01	7783210.191490080
1984-10-01	65666401.912323706
1985-01-01	64621395.404541604
1985-04-01	20098781.550300997
1985-07-01	74233151.311686400
1985-10-01	81867162.441851400
1986-01-01	128167171.604528000
1986-04-01	-75395948.304031000
1986-07-01	117581598.973528000
1986-10-01	24309394.027413500
1987-01-01	81711461.804451200
1987-04-01	18064031.391399400
1987-07-01	76036442.231493890
1987-10-01	84092401.835404600
1988-01-01	-64661904.935045200
1988-04-01	-97542782.043596700
1988-07-01	-40677487.823360800
1988-10-01	132495746.947800000
1989-01-01	36684662.528527900
1989-04-01	-8120869.025351160
1989-07-01	-110120022.198436000
1989-10-01	-4754953.068168400
1990-01-01	243558912.036944000
1990-04-01	-75329429.673615290
1990-07-01	-39098603.546549000
1990-10-01	274270638.350898000
1991-01-01	-245842279.376881000
1991-04-01	87055062.244187800
1991-07-01	-37068308.566007200
1991-10-01	79855817.539638400
1992-01-01	-30084066.501213300
1992-04-01	93919484.834384300
1992-07-01	62736698.152108700
1992-10-01	-52036971.565548494
1993-01-01	36913693.291577300
1993-04-01	-104319833.617629990
1993-07-01	136890760.466059000
1993-10-01	-23870122.267482600
1994-01-01	232206958.733210000
1994-04-01	-329291439.761907000
1994-07-01	-207846058.830849000
1994-10-01	-87097633.199849100
1995-01-01	216795147.308166000
1995-04-01	17554026.518377997
1995-07-01	-100725648.754373000
1995-10-01	20286138.889926300
1996-01-01	150075226.786733000
1996-04-01	350571710.098032000
1996-07-01	512981652.671540000
1996-10-01	242265103.479928000
1997-01-01	251214506.219030000
1997-04-01	29462180.576902800
1997-07-01	196550944.721734000
1997-10-01	358557453.530982000
1998-01-01	-261830910.868100000
1998-04-01	-315672701.381370000
1998-07-01	64449189.370686695
1998-10-01	83786127.024362890
1999-01-01	-166610796.812571020
1999-04-01	27313287.241566002
1999-07-01	-132947696.870090990
1999-10-01	-146716190.045362000
2000-01-01	123744971.785608010
2000-04-01	665407535.461979000
2000-07-01	26573015.411739800
2000-10-01	-196979960.567504020
2001-01-01	-123921447.257396000
2001-04-01	393796801.960765000
2001-07-01	-112259057.167721000
2001-10-01	-59162332.550527096
2002-01-01	-155466007.472906000
2002-04-01	-451960436.288334000
2002-07-01	-373591783.494507000
2002-10-01	-25146401.509831000
2003-01-01	-165095786.779387000
2003-04-01	-226597447.391281000
2003-07-01	103030337.635744000
2003-10-01	194465192.416528000
2004-01-01	520683166.231982000
2004-04-01	341602679.610277000
2004-07-01	-436392060.157696000
2004-10-01	-264810007.164939020
2005-01-01	517913005.064655960
2005-04-01	50091916.810511800
2005-07-01	-405037523.240341000
2005-10-01	-1603386156.691300000
2006-01-01	308482276.645030000
2006-04-01	-2897878578.048110000
2006-07-01	-172438341.140152000
2006-10-01	-45992244.804313004
2007-01-01	-320644778.020049000
2007-04-01	-1159828409.716009900
2007-07-01	111169912.957388000
2007-10-01	1071000587.869240000
2008-01-01	569647884.527206000
2008-04-01	37447813.866595000
2008-07-01	-58478199.159910400
2008-10-01	-37516098.960038300
2009-01-01	222304798.784821000
2009-04-01	-167137767.956886980
2009-07-01	260860824.942826000
2009-10-01	60425794.041244105
2010-01-01	522848579.318143000
2010-04-01	-141685919.322852000
2010-07-01	-935884493.485150900
2010-10-01	-570072736.553308000
2011-01-01	-426101017.162871960
2011-04-01	140246262.817608980
2011-07-01	183441701.189413000
2011-10-01	-1096941714.327180100
2012-01-01	91119405.776517800
2012-04-01	-232485265.225933020
2012-07-01	286027423.271409030
2012-10-01	-1093667986.556130000
2013-01-01	-326985714.247518000
2013-04-01	276395667.417481000
2013-07-01	-169044828.999984000
2013-10-01	-1685407444.607910200
2014-01-01	-236710913.897876980
2014-04-01	33665359.765741600
2014-07-01	-649073622.656606000
2014-10-01	-2239117883.645450000
2015-01-01	4544517.264850610
2015-04-01	-1214917937.179000100
2015-07-01	-672082457.588326000
2015-10-01	-1143506754.847450000
2016-01-01	449344897.199859000
2016-04-01	-446037189.509368000
2016-07-01	-1245746707.716300000
2016-10-01	-926830650.819630000
2017-01-01	-34704398.682838700
2017-04-01	-996502922.956674000
2017-07-01	-480278483.000497000
2017-10-01	-725878549.466515000
2018-01-01	18088640.675006498
2018-04-01	-757474226.600939000