Quarter	US Dollars, monthly level
1960-01-01	-34120802.059807904
1960-04-01	-61061662.498078700
1960-07-01	-51456656.855411000
1960-10-01	-72880893.595294200
1961-01-01	-55731011.498665206
1961-04-01	-108838889.160037010
1961-07-01	-66184983.192222394
1961-10-01	-94205646.737576700
1962-01-01	-54849726.218075804
1962-04-01	-59657747.391652100
1962-07-01	-51771937.439616900
1962-10-01	-65682400.118195800
1963-01-01	-53816291.701518500
1963-04-01	-69975139.339523090
1963-07-01	-55895940.042707000
1963-10-01	-63290256.438868195
1964-01-01	-51486197.725125800
1964-04-01	-69663571.670147500
1964-07-01	-75967842.828348400
1964-10-01	-62867537.300479790
1965-01-01	-70835581.391301300
1965-04-01	-89683392.557485400
1965-07-01	-67415886.680086500
1965-10-01	-85941081.605629800
1966-01-01	-58468645.098233104
1966-04-01	-109309344.167150000
1966-07-01	-93510919.460286600
1966-10-01	-125191080.512455000
1967-01-01	-61723312.090091500
1967-04-01	-117804010.630924000
1967-07-01	-80178948.100414900
1967-10-01	-59675639.625828900
1968-01-01	-62121111.765710704
1968-04-01	-104876080.906066000
1968-07-01	-66786653.358910810
1968-10-01	-76103023.203926800
1969-01-01	-28509163.159864698
1969-04-01	-68151428.951464400
1969-07-01	-65073946.605274100
1969-10-01	-250452639.325304990
1970-01-01	-100780298.714864000
1970-04-01	-121521983.190218000
1970-07-01	-215501446.564366000
1970-10-01	-175118671.760718000
1971-01-01	-96961250.516496400
1971-04-01	-149016825.082632000
1971-07-01	-160206950.211756000
1971-10-01	-352789705.814605000
1972-01-01	-206751029.045694000
1972-04-01	-262880775.284713000
1972-07-01	-189104392.470051020
1972-10-01	-248164189.400911000
1973-01-01	-72794852.873470800
1973-04-01	-194876138.733251000
1973-07-01	-340037251.558959960
1973-10-01	-576059264.066348000
1974-01-01	-187881791.360570000
1974-04-01	-488466260.165358960
1974-07-01	-521433061.627844000
1974-10-01	-1027203603.718730000
1975-01-01	-624062089.342591000
1975-04-01	-501439198.636721000
1975-07-01	-424068731.572774050
1975-10-01	-430884316.995270000
1976-01-01	-563930113.783916000
1976-04-01	-545609679.737899000
1976-07-01	-638357164.821648000
1976-10-01	-755020037.686775000
1977-01-01	-632634107.347665000
1977-04-01	-766287687.710992900
1977-07-01	-841076035.385669000
1977-10-01	-704202621.698176000
1978-01-01	-744511053.818246000
1978-04-01	-789235958.218522000
1978-07-01	-692700844.048172000
1978-10-01	-597289194.080993000
1979-01-01	-718697127.690897000
1979-04-01	-728118865.497868000
1979-07-01	-870686033.373714900
1979-10-01	-866475530.070676000
1980-01-01	-1158110049.868990000
1980-04-01	-1122453790.069600000
1980-07-01	-1426442901.390770000
1980-10-01	-1125524267.570200000
1981-01-01	-1590977411.126850000
1981-04-01	-1554529317.059069900
1981-07-01	-1234941047.754680200
1981-10-01	-1373978409.131980000
1982-01-01	-1624289853.883500000
1982-04-01	-1509796074.293720000
1982-07-01	-1370647085.604880000
1982-10-01	-921904359.930683000
1983-01-01	-1179855886.419890000
1983-04-01	-1014760196.266300000
1983-07-01	-729994595.184219000
1983-10-01	-706357788.545857900
1984-01-01	-761566809.745065900
1984-04-01	-782970747.784788000
1984-07-01	-593215793.765757900
1984-10-01	-618097064.560763000
1985-01-01	-490728239.346515000
1985-04-01	-531224619.428490000
1985-07-01	-474926196.892578000
1985-10-01	-474750456.616140000
1986-01-01	-493467542.364674000
1986-04-01	-669110903.262715100
1986-07-01	-526431694.915332000
1986-10-01	-447859738.624464000
1987-01-01	-866208320.209428900
1987-04-01	-1252871413.499250000
1987-07-01	-1054922562.313850000
1987-10-01	-923726070.196431000
1988-01-01	-1209494330.062580000
1988-04-01	-1323086764.972720100
1988-07-01	-1229421531.591940000
1988-10-01	-1499767714.260570000
1989-01-01	-1277594966.282170000
1989-04-01	-1930331262.400859800
1989-07-01	-1355868159.817370200
1989-10-01	-1543152033.070750000
1990-01-01	-1828232853.236740000
1990-04-01	-2196827925.836830000
1990-07-01	-2009886372.486260000
1990-10-01	-2538411954.085760000
1991-01-01	-2504363070.829950000
1991-04-01	-2634963530.877720000
1991-07-01	-2281233763.271700000
1991-10-01	-2450023278.907660000
1992-01-01	-2456958881.322030000
1992-04-01	-2878628759.479010000
1992-07-01	-3158292295.705539700
1992-10-01	-3131286221.982850000
1993-01-01	-2382439376.642970000
1993-04-01	-2718329754.291730400
1993-07-01	-1649677018.299930000
1993-10-01	-1978165612.635170000
1994-01-01	-1945899313.107440000
1994-04-01	-2510746871.064390000
1994-07-01	-1875458046.631520000
1994-10-01	-2964304967.050400300
1995-01-01	-2331377083.341460000
1995-04-01	-3166632569.120960000
1995-07-01	-2043335345.449630000
1995-10-01	-2519231351.200930000
1996-01-01	-2304297021.462070000
1996-04-01	-2701143361.470090000
1996-07-01	-2382380302.179170000
1996-10-01	-3441370246.540280000
1997-01-01	-2679567769.722900000
1997-04-01	-2925590876.174160000
1997-07-01	-2430426229.400660000
1997-10-01	-3171046102.795770000
1998-01-01	-2870573873.933920400
1998-04-01	-3532874638.267020000
1998-07-01	-3041294318.162930000
1998-10-01	-4152865565.584870000
1999-01-01	-3474263639.294280000
1999-04-01	-3839279180.865290000
1999-07-01	-3556137514.785850000
1999-10-01	-4525487828.071341000
2000-01-01	-4143844775.567100000
2000-04-01	-4054820624.889170000
2000-07-01	-3320404088.834739700
2000-10-01	-4056072684.951780300
2001-01-01	-3733593782.253629700
2001-04-01	-3918417646.656540000
2001-07-01	-3732797697.410480000
2001-10-01	-3992253327.406369700
2002-01-01	-3186635300.744560000
2002-04-01	-3523319227.017680000
2002-07-01	-3598725203.609060000
2002-10-01	-3944941379.877879600
2003-01-01	-3303017365.429529700
2003-04-01	-3870550432.299940000
2003-07-01	-3764647344.883650300
2003-10-01	-4548758379.949500000
2004-01-01	-4114493127.835020000
2004-04-01	-4979836311.441060000
2004-07-01	-4740686567.081820000
2004-10-01	-5316201505.281321000
2005-01-01	-5984865649.064341000
2005-04-01	-6590066759.452620500
2005-07-01	-6005432156.312969000
2005-10-01	-6558365554.995311000
2006-01-01	-6213447510.177270000
2006-04-01	-6640500760.238040000
2006-07-01	-6361508667.037870000
2006-10-01	-6725688461.493390000
2007-01-01	-5907361130.272490500
2007-04-01	-7200492754.091249000
2007-07-01	-7456637387.618320000
2007-10-01	-9219425138.938440000
2008-01-01	-8854555826.957050000
2008-04-01	-10228825004.251300000
2008-07-01	-9791797346.915180000
2008-10-01	-8350677766.240830000
2009-01-01	-6096763319.593360000
2009-04-01	-6255397205.708449000
2009-07-01	-7233366753.861580000
2009-10-01	-7893900731.278770000
2010-01-01	-6600575252.290630000
2010-04-01	-7480277130.668930000
2010-07-01	-6170554141.374579000
2010-10-01	-8073341797.957760000
2011-01-01	-6564869919.439850000
2011-04-01	-6738789370.385370000
2011-07-01	-5681037876.499419000
2011-10-01	-4333544667.411289000
2012-01-01	-3866432706.928050000
2012-04-01	-3153049770.167640000
2012-07-01	-3591118199.701110400
2012-10-01	-3742865530.604739700
2013-01-01	-2680553475.664220300
2013-04-01	-2699130573.972340000
2013-07-01	-3592994709.772900000
2013-10-01	-3946140824.174630000
2014-01-01	-3609739968.709150000
2014-04-01	-3435549154.593879700
2014-07-01	-4069729063.081980000
2014-10-01	-3454495489.087460000
2015-01-01	-2440018826.291840000
2015-04-01	-3308741806.299010300
2015-07-01	-3109528869.427829700
2015-10-01	-3014285805.526660000
2016-01-01	-2740125480.500750000
2016-04-01	-3089087163.860550000
2016-07-01	-3226990638.001829600
2016-10-01	-3525179104.419130000
2017-01-01	-3033108282.619980000
2017-04-01	-4311235622.058250000
2017-07-01	-4395531067.322989000
2017-10-01	-4638123918.532740000
2018-01-01	-4329090071.269851000
2018-04-01	-4895505010.564380000