Quarter	US Dollars, monthly level
1960-01-01	-133601951.012617990
1960-04-01	-144523104.692183000
1960-07-01	-115864716.674974000
1960-10-01	-112928352.350597010
1961-01-01	-216945140.679136000
1961-04-01	-247917787.382440980
1961-07-01	-140177187.666258000
1961-10-01	-203994216.000733000
1962-01-01	-262431347.073761000
1962-04-01	-202659312.737513000
1962-07-01	-186354378.818737000
1962-10-01	-114919556.310583000
1963-01-01	-260894691.899762000
1963-04-01	-218846370.959893020
1963-07-01	-213793122.571951000
1963-10-01	-317015281.691118000
1964-01-01	-371425480.509177000
1964-04-01	-404854938.510754000
1964-07-01	-244146166.600694000
1964-10-01	-233317173.237768980
1965-01-01	-254467550.983895000
1965-04-01	-247350444.592297000
1965-07-01	-242221100.828237000
1965-10-01	-329400446.785779000
1966-01-01	-469653046.114404000
1966-04-01	-288175166.378645000
1966-07-01	-289809072.933899000
1966-10-01	-218048160.362584000
1967-01-01	-299274653.476310970
1967-04-01	-304708424.443956000
1967-07-01	-204481719.983382000
1967-10-01	-245805002.113256000
1968-01-01	-335549376.599175000
1968-04-01	-229597122.898468020
1968-07-01	-209458137.310832980
1968-10-01	-176531270.859652000
1969-01-01	-272628436.139272030
1969-04-01	-277999320.568195000
1969-07-01	-200560392.035334000
1969-10-01	-283066993.445932030
1970-01-01	-338658205.560854000
1970-04-01	-490877018.907447000
1970-07-01	-330515059.572264000
1970-10-01	-494745127.089216950
1971-01-01	-430880212.148467000
1971-04-01	-419902777.001732000
1971-07-01	-355572548.269929000
1971-10-01	-261183550.651955960
1972-01-01	-232094382.960952000
1972-04-01	-131912681.912682000
1972-07-01	-127573300.062382980
1972-10-01	-245617653.124356000
1973-01-01	38136150.440538800
1973-04-01	57717870.385485396
1973-07-01	-503661368.101447000
1973-10-01	-265460143.431081980
1974-01-01	-134936759.403882000
1974-04-01	-197679849.531047020
1974-07-01	-328954754.687325000
1974-10-01	-205629508.154715000
1975-01-01	-469933891.825497000
1975-04-01	172023102.219029000
1975-07-01	-286352558.895207000
1975-10-01	60013503.038183704
1976-01-01	210456799.661076000
1976-04-01	-329213055.593062040
1976-07-01	-74150823.273871300
1976-10-01	-369472806.006912000
1977-01-01	-947338980.342017000
1977-04-01	-842828599.200778000
1977-07-01	-685192234.488009000
1977-10-01	-389908576.040522000
1978-01-01	-558453237.410073000
1978-04-01	-870419240.688539000
1978-07-01	-1042554496.121650000
1978-10-01	-1226115171.577460000
1979-01-01	-499791961.388034000
1979-04-01	-886157722.185436000
1979-07-01	-1366390173.072749900
1979-10-01	-1783223919.180920100
1980-01-01	-882608918.240925100
1980-04-01	-1063872556.409870100
1980-07-01	-1277684014.741850000
1980-10-01	-1003877153.750860000
1981-01-01	310059413.456345000
1981-04-01	-321534506.624481000
1981-07-01	201729817.764562000
1981-10-01	1337231284.433400000
1982-01-01	1854296920.507940000
1982-04-01	528018194.453218000
1982-07-01	-450877214.401699960
1982-10-01	98251680.140255100
1983-01-01	1807975367.978370200
1983-04-01	1003115711.062569900
1983-07-01	329172164.146284000
1983-10-01	887581844.412386000
1984-01-01	1475474423.796700000
1984-04-01	1337898944.884980000
1984-07-01	-65546575.494887000
1984-10-01	990045318.975868000
1985-01-01	770280159.368308900
1985-04-01	1129192831.980390000
1985-07-01	178133189.135227000
1985-10-01	1111759656.652360000
1986-01-01	1848953090.396620000
1986-04-01	1861191257.262560000
1986-07-01	968908170.643528000
1986-10-01	152951029.223785000
1987-01-01	58273000.176584900
1987-04-01	1011136586.963640000
1987-07-01	-252502494.447842000
1987-10-01	789528504.964933000
1988-01-01	964640473.112948000
1988-04-01	455106904.890312000
1988-07-01	796918014.112584000
1988-10-01	1506644020.381660000
1989-01-01	1463402950.756850000
1989-04-01	543803876.016385100
1989-07-01	608341654.504954000
1989-10-01	975784636.443631000
1990-01-01	1224746812.194990200
1990-04-01	525173381.333051000
1990-07-01	886169955.997846000
1990-10-01	2690604145.750900000
1991-01-01	2307068522.773350200
1991-04-01	1177895275.456250000
1991-07-01	1129136263.363309900
1991-10-01	2172695873.477550000
1992-01-01	862567216.592897000
1992-04-01	1822681773.182270000
1992-07-01	1203177747.680360000
1992-10-01	1762210502.178400000
1993-01-01	2256268924.627849600
1993-04-01	3451415146.286850000
1993-07-01	3476431274.090320000
1993-10-01	5468887869.269051000
1994-01-01	3919026106.148909600
1994-04-01	3989418745.978410000
1994-07-01	3888910039.212700000
1994-10-01	5311325663.409880000
1995-01-01	4245259455.794610000
1995-04-01	4788818694.076000000
1995-07-01	5125593961.593620000
1995-10-01	4464716644.233581000
1996-01-01	5839570158.730160000
1996-04-01	4926482968.820340000
1996-07-01	4659579946.419000000
1996-10-01	3233513807.379520000
1997-01-01	3987325955.387809800
1997-04-01	4177401975.385570000
1997-07-01	3955953735.376040000
1997-10-01	4903671198.841730000
1998-01-01	4759721210.061621000
1998-04-01	3916040482.248520000
1998-07-01	4845173617.749730000
1998-10-01	4654898808.680960000
1999-01-01	3089693601.873120000
1999-04-01	2910290072.968820000
1999-07-01	2562629602.454120000
1999-10-01	3841418147.663610000
2000-01-01	3570639077.453010000
2000-04-01	3543987376.354110200
2000-07-01	4487872733.846200000
2000-10-01	3229624725.285619700
2001-01-01	5109264303.021720000
2001-04-01	5469427017.754680000
2001-07-01	4907709901.925700000
2001-10-01	6721527627.828760000
2002-01-01	5470517710.865279000
2002-04-01	5368709745.342100000
2002-07-01	6791974098.195690000
2002-10-01	7240879824.723229000
2003-01-01	7824483999.502630000
2003-04-01	7580485800.439290000
2003-07-01	7975955396.157041000
2003-10-01	7887505146.272699000
2004-01-01	9308740665.766990000
2004-04-01	8742132896.414770000
2004-07-01	9539694839.796370000
2004-10-01	10162690136.025002000
2005-01-01	11556805708.897200000
2005-04-01	11414316799.367401000
2005-07-01	9380278932.509640000
2005-10-01	10253467311.598200000
2006-01-01	12227695169.871399000
2006-04-01	10874695101.102600000
2006-07-01	10339745764.814999000
2006-10-01	13338252341.932901000
2007-01-01	14118482967.665400000
2007-04-01	12095636125.303500000
2007-07-01	13458244011.464800000
2007-10-01	18734170970.600500000
2008-01-01	15945571669.157299000
2008-04-01	14815964797.401300000
2008-07-01	13809133376.336400000
2008-10-01	12351732270.200500000
2009-01-01	12215124221.582200000
2009-04-01	12135203661.790401000
2009-07-01	14585458677.904001000
2009-10-01	15871529350.666399000
2010-01-01	17027270121.475101000
2010-04-01	10907064411.702400000
2010-07-01	16250448404.151200000
2010-10-01	17477129061.678500000
2011-01-01	18249589136.473500000
2011-04-01	18384430667.621998000
2011-07-01	16924085049.160500000
2011-10-01	19057814937.839200000
2012-01-01	17607920505.413597000
2012-04-01	16813316028.794102000
2012-07-01	13953780418.449799000
2012-10-01	20226658167.175500000
2013-01-01	22606770683.341198000
2013-04-01	19586621646.603400000
2013-07-01	17968549985.995000000
2013-10-01	21696832853.116600000
2014-01-01	22011615707.291298000
2014-04-01	19236552151.474700000
2014-07-01	17885694982.531900000
2014-10-01	23796137219.993200000
2015-01-01	15528538728.320600000
2015-04-01	13593547901.646700000
2015-07-01	13991490290.643099000
2015-10-01	15146824472.344300000
2016-01-01	16472494341.390099000
2016-04-01	17423937654.293300000
2016-07-01	16651378815.814700000
2016-10-01	18970303753.109100000
2017-01-01	19232879416.117200000
2017-04-01	18174803899.536400000
2017-07-01	19118827769.221302000
2017-10-01	19596011736.128902000
2018-01-01	18303763450.818400000
2018-04-01	19291841922.060596000