Quarter	US Dollars, sum over component sub-periods
1960-01-01	7817360.635975180
1960-04-01	-20123380.545488000
1960-07-01	-174673133.196711000
1960-10-01	-100787918.889215000
1961-01-01	-3348194.106879760
1961-04-01	271612269.955268000
1961-07-01	64719399.059020410
1961-10-01	47076359.671523910
1962-01-01	-59554309.035184406
1962-04-01	70685941.613408400
1962-07-01	6713997.864948930
1962-10-01	33560000.059674500
1963-01-01	13474243.982633300
1963-04-01	90451284.069133910
1963-07-01	97542125.304675490
1963-10-01	224449930.171202000
1964-01-01	103881017.140431000
1964-04-01	79877895.573786700
1964-07-01	-23346372.714838800
1964-10-01	-60121623.818303905
1965-01-01	-140531991.661849000
1965-04-01	-100754426.757773000
1965-07-01	-93350168.855168400
1965-10-01	13428000.738542201
1966-01-01	0.000000000
1966-04-01	126802165.113575000
1966-07-01	-74448166.302136400
1966-10-01	-57820530.706901600
1967-01-01	-60107364.442634200
1967-04-01	45667099.984809200
1967-07-01	-56596382.972927600
1967-10-01	72367909.545856400
1968-01-01	27958237.118935600
1968-04-01	37799716.593578300
1968-07-01	0.000000000
1968-10-01	13311586.982561098
1969-01-01	146638683.119721000
1969-04-01	0.000000000
1969-07-01	-206329519.647943000
1969-10-01	-120207396.046901000
1970-01-01	33517969.551539600
1970-04-01	342836394.637039960
1970-07-01	-37737701.596740700
1970-10-01	8885329.985206550
1971-01-01	314176793.573968000
1971-04-01	476618387.149342000
1971-07-01	290427273.165254000
1971-10-01	292092307.160629000
1972-01-01	463299001.413485000
1972-04-01	696735002.125678000
1972-07-01	771789600.524271000
1972-10-01	793135221.267718000
1973-01-01	-441279405.864417970
1973-04-01	135069632.118927000
1973-07-01	-12979259.622594400
1973-10-01	17904516.051918000
1974-01-01	-271499231.057975950
1974-04-01	-305925339.335315000
1974-07-01	-869154470.021199000
1974-10-01	-187723969.912313000
1975-01-01	36576056.890477000
1975-04-01	326831737.429805000
1975-07-01	-351247558.488538000
1975-10-01	-936004287.188194000
1976-01-01	-45455755.597849800
1976-04-01	-8680906.354511140
1976-07-01	52272820.458933500
1976-10-01	-8123874.603485870
1977-01-01	139060703.519979980
1977-04-01	-389949329.680824000
1977-07-01	-649598736.843394000
1977-10-01	-48505217.429043695
1978-01-01	213210264.147700000
1978-04-01	-39814324.323777200
1978-07-01	-236427368.693789000
1978-10-01	-130328861.167039000
1979-01-01	16972941.876028600
1979-04-01	46582378.746091500
1979-07-01	-620299277.593425000
1979-10-01	-140114894.693796000
1980-01-01	242457396.359023000
1980-04-01	12374093.994577100
1980-07-01	-459556465.382299000
1980-10-01	380008984.139938000
1981-01-01	319237497.492011960
1981-04-01	933283314.656385000
1981-07-01	-1282781060.349470000
1981-10-01	27399582.385039200
1982-01-01	60855560.172122600
1982-04-01	2519573652.588710000
1982-07-01	398676634.179486000
1982-10-01	1785522954.771849900
1983-01-01	-455072143.060916000
1983-04-01	579565855.798396000
1983-07-01	211133873.274241000
1983-10-01	2657338113.755180000
1984-01-01	-698721588.447016000
1984-04-01	-503842460.875982000
1984-07-01	56865880.980277800
1984-10-01	-151280435.341001000
1985-01-01	-608458651.611043000
1985-04-01	-396841314.976473000
1985-07-01	-548763215.759681900
1985-10-01	-749223808.372296100
1986-01-01	336510781.507933000
1986-04-01	-527811194.850178000
1986-07-01	-1731071457.290590000
1986-10-01	2634433096.134219600
1987-01-01	-1050836468.881740100
1987-04-01	2631507378.257099600
1987-07-01	1323645301.343990000
1987-10-01	-2513358523.868550000
1988-01-01	773815664.536752000
1988-04-01	3550431329.366000000
1988-07-01	605789730.493738000
1988-10-01	343979292.941595000
1989-01-01	-213205873.577847000
1989-04-01	-34960790.721990700
1989-07-01	512902622.143083040
1989-10-01	331232655.529486000
1990-01-01	-628868359.168052100
1990-04-01	1445796940.753929900
1990-07-01	59789323.171243500
1990-10-01	860385715.182377000
1991-01-01	-94140801.625956100
1991-04-01	272924413.660454000
1991-07-01	-43856384.269089400
1991-10-01	-473031746.732519030
1992-01-01	-2112834649.718520000
1992-04-01	-350123819.240278960
1992-07-01	-1749295685.393630000
1992-10-01	-509592954.253854000
1993-01-01	-766571223.545612900
1993-04-01	213286848.098788000
1993-07-01	477378130.179469000
1993-10-01	44628786.951777995
1994-01-01	-201618275.709595000
1994-04-01	391895083.933402000
1994-07-01	-389489349.386147000
1994-10-01	-713712852.353523000
1995-01-01	389460115.520535000
1995-04-01	-740285403.748393900
1995-07-01	-229837210.789296000
1995-10-01	971172252.848446000
1996-01-01	-1060577543.338909900
1996-04-01	975109601.202932000
1996-07-01	2342715787.283910000
1996-10-01	222792522.952896000
1997-01-01	449738014.924394000
1997-04-01	1059419700.477750000
1997-07-01	668086280.035886000
1997-10-01	710417768.183153000
1998-01-01	-2216691654.943830000
1998-04-01	585382342.831237000
1998-07-01	-1131665559.031280000
1998-10-01	716401739.808504000
1999-01-01	-53336025.803954100
1999-04-01	797435958.909004900
1999-07-01	-1146360817.984220000
1999-10-01	7107495662.244329000
2000-01-01	-5039321286.209450000
2000-04-01	781758407.000009100
2000-07-01	-420793207.575973000
2000-10-01	3324006834.307090000
2001-01-01	-600867341.458257000
2001-04-01	2308976144.864900000
2001-07-01	-754207286.994953000
2001-10-01	130015144.170024010
2002-01-01	-1528706097.842130000
2002-04-01	1867786349.780410000
2002-07-01	-552643285.216594000
2002-10-01	330193619.367146970
2003-01-01	-2125837983.448389800
2003-04-01	6155633268.971560500
2003-07-01	-308688414.305196000
2003-10-01	3164342328.779540000
2004-01-01	1589495188.635190000
2004-04-01	-642892461.521539900
2004-07-01	-5007270792.693740000
2004-10-01	5229022419.416890000
2005-01-01	-634795086.211702000
2005-04-01	6982624026.911759000
2005-07-01	-6546629764.991501000
2005-10-01	7380423587.729910000
2006-01-01	1112568721.361430200
2006-04-01	2084484390.550159700
2006-07-01	-1560282495.375820000
2006-10-01	8090556912.840100000
2007-01-01	1240020891.772880000
2007-04-01	8403606403.353460000
2007-07-01	-23785695178.318400000
2007-10-01	-20969213777.647602000
2008-01-01	4884795632.021530000
2008-04-01	1873942838.245830000
2008-07-01	-4489190172.008500000
2008-10-01	1465739746.049900000
2009-01-01	1215498874.538080000
2009-04-01	9837069763.826040000
2009-07-01	-1461900772.630159900
2009-10-01	-1072957996.715110100
2010-01-01	-2981773100.431880000
2010-04-01	271428789.427904960
2010-07-01	2008766402.761410000
2010-10-01	1106880931.286580000
2011-01-01	-6602898074.847509000
2011-04-01	6823002195.831370000
2011-07-01	352533474.939056040
2011-10-01	3789557419.728090000
2012-01-01	4926369014.404030000
2012-04-01	-2866978085.713390000
2012-07-01	-2543880195.636660000
2012-10-01	3003705565.542260000
2013-01-01	2047140438.124879800
2013-04-01	-1584336199.388970100
2013-07-01	399383319.051197000
2013-10-01	4643775917.495260000
2014-01-01	3629773807.969890000
2014-04-01	1152340393.705980000
2014-07-01	-3458012016.348489800
2014-10-01	2309947106.030010000
2015-01-01	4431373996.783720000
2015-04-01	-5227819925.447120000
2015-07-01	-864508171.216674000
2015-10-01	-682661508.196845000
2016-01-01	-1280670893.044960000
2016-04-01	1135845009.940210000
2016-07-01	-578443367.771270000
2016-10-01	8505973905.592140000
2017-01-01	2762714314.254260000
2017-04-01	4056692992.341590000
2017-07-01	-7957081578.432260500
2017-10-01	9869788936.627270000
2018-01-01	-8192404079.610940000
2018-04-01	-958482191.617568000