Quarter	US Dollars, monthly level
1960-01-01	-75283753.56745760
1960-04-01	-61647680.39078860
1960-07-01	-68195716.64276570
1960-10-01	-90393698.38100270
1961-01-01	-99869314.79810080
1961-04-01	-52164646.63511900
1961-07-01	-59552627.51242710
1961-10-01	-70906055.27298220
1962-01-01	-80120375.53320460
1962-04-01	-53241527.39547570
1962-07-01	-67566578.06948969
1962-10-01	-89071988.01590480
1963-01-01	-105565524.18309800
1963-04-01	-87656603.88526040
1963-07-01	-77421630.20180740
1963-10-01	-80722641.56270790
1964-01-01	-109596204.80350700
1964-04-01	-104541965.10509200
1964-07-01	-85600544.75531691
1964-10-01	-119427960.52894700
1965-01-01	-110269661.08274500
1965-04-01	-118974845.19416900
1965-07-01	-114578582.28779400
1965-10-01	-159850931.32683500
1966-01-01	-177391526.48886698
1966-04-01	-168553760.85569000
1966-07-01	-143051489.75296400
1966-10-01	-158836550.47593500
1967-01-01	-156884187.79220500
1967-04-01	-125694229.06994700
1967-07-01	-83171439.72668340
1967-10-01	-137778294.51417202
1968-01-01	-166709230.66420200
1968-04-01	-108165697.59528099
1968-07-01	-131278212.75969900
1968-10-01	-103893971.57011700
1969-01-01	-115949275.13332500
1969-04-01	-113489550.95630000
1969-07-01	-89368278.75062819
1969-10-01	-96213654.05445780
1970-01-01	-146781096.28635000
1970-04-01	-161887445.67022800
1970-07-01	-172637749.97551300
1970-10-01	-214353596.70094200
1971-01-01	-242416679.59265700
1971-04-01	-261629514.00529600
1971-07-01	-248000555.49840298
1971-10-01	-271811173.46047800
1972-01-01	-326577022.95171400
1972-04-01	-331374181.09201200
1972-07-01	-253547174.03727600
1972-10-01	-421570825.16788703
1973-01-01	-479453714.15206003
1973-04-01	-435856172.32247400
1973-07-01	-472142674.87548300
1973-10-01	-442751060.43131304
1974-01-01	-527591515.97336197
1974-04-01	-454683873.03539300
1974-07-01	-470808726.13389800
1974-10-01	-408542236.35412900
1975-01-01	-547282180.50558900
1975-04-01	-494383863.59912200
1975-07-01	-399044880.87704700
1975-10-01	-433447615.35656800
1976-01-01	-718936685.48387100
1976-04-01	-684651648.71311100
1976-07-01	-735130510.81780900
1976-10-01	-877756923.84324200
1977-01-01	-998649543.26414600
1977-04-01	-923337885.22071900
1977-07-01	-1158533491.31562000
1977-10-01	-1357212550.02025000
1978-01-01	-923752591.14874200
1978-04-01	-932353870.34164200
1978-07-01	-957005290.62693390
1978-10-01	-1031263466.52103010
1979-01-01	-1063168980.12618000
1979-04-01	-1054155350.59700000
1979-07-01	-1222843441.29127000
1979-10-01	-1438384964.32779000
1980-01-01	-1792599933.71495000
1980-04-01	-1855733497.85142000
1980-07-01	-1719773258.73678000
1980-10-01	-1570249125.51162000
1981-01-01	-1444978988.61436000
1981-04-01	-1325395366.21290020
1981-07-01	-1396423933.89870000
1981-10-01	-1029182750.99928990
1982-01-01	-1043843220.89331000
1982-04-01	-993752247.96861290
1982-07-01	-1146913220.83020000
1982-10-01	-674151194.36917800
1983-01-01	-886800241.40328190
1983-04-01	-862243652.60733100
1983-07-01	-984204856.74174390
1983-10-01	-1209307686.89123000
1984-01-01	-800944315.42106010
1984-04-01	-1133784933.65558000
1984-07-01	-1069895270.20368990
1984-10-01	-877421281.01486210
1985-01-01	-691446441.24514290
1985-04-01	-939769160.08180000
1985-07-01	-1181750247.40616000
1985-10-01	-944579335.66619710
1986-01-01	-903106747.65108800
1986-04-01	-1032177397.73171990
1986-07-01	-1333671710.48057000
1986-10-01	-1042390538.17770020
1987-01-01	-1112284858.81792000
1987-04-01	-1396634705.29987000
1987-07-01	-1420167895.21292000
1987-10-01	-1576938718.74272000
1988-01-01	-1420792116.65134000
1988-04-01	-1364090452.34424020
1988-07-01	-1493341917.26030000
1988-10-01	-1244543040.08269000
1989-01-01	-1820205756.32998010
1989-04-01	-1585240272.27947000
1989-07-01	-1452713793.15693000
1989-10-01	-1602542170.38275000
1990-01-01	-2075677996.84741020
1990-04-01	-1458427843.52146980
1990-07-01	-2273362604.06787000
1990-10-01	-2155517262.21307000
1991-01-01	-2233013681.11494970
1991-04-01	-2724819576.00360970
1991-07-01	-2358369772.39601000
1991-10-01	-2328460335.91213000
1992-01-01	-2015182235.09533980
1992-04-01	-2128460700.01211000
1992-07-01	-2661464457.50935000
1992-10-01	-2916846179.73746000
1993-01-01	-1968839712.91866000
1993-04-01	-2259979850.89664030
1993-07-01	-2063167093.91750000
1993-10-01	-2112311090.44407990
1994-01-01	-2388937216.33888000
1994-04-01	-2501157452.81908000
1994-07-01	-2095982645.69688000
1994-10-01	-3230955295.70687000
1995-01-01	-1966004667.75287000
1995-04-01	-2362536776.72442000
1995-07-01	-2127031826.25324000
1995-10-01	-2425596191.69679980
1996-01-01	-2573447080.77846000
1996-04-01	-2485331960.88523000
1996-07-01	-2759602822.05383000
1996-10-01	-2715350858.50624000
1997-01-01	-2022336702.19041000
1997-04-01	-1099456129.00772000
1997-07-01	-1665836761.20371990
1997-10-01	-1151678300.90599010
1998-01-01	-1736247579.43054000
1998-04-01	-843709090.90909100
1998-07-01	-1343515402.53689000
1998-10-01	-1454292325.18922000
1999-01-01	-1736065440.38399980
1999-04-01	-1081583837.93885020
1999-07-01	-1540073590.93347000
1999-10-01	-930463463.03372490
2000-01-01	-1152137529.62304000
2000-04-01	-830594316.72227200
2000-07-01	-1269946347.88653020
2000-10-01	-1399527233.95965000
2001-01-01	-1469965307.63764000
2001-04-01	-1110784852.13518000
2001-07-01	-732581828.27815200
2001-10-01	-580481318.62160300
2002-01-01	-196277308.41977000
2002-04-01	313496600.23760200
2002-07-01	-150602675.67038798
2002-10-01	431501411.86917204
2003-01-01	-950283077.18350900
2003-04-01	-613949378.91654200
2003-07-01	-557875620.17830910
2003-10-01	-223106674.75163000
2004-01-01	-242154022.50293000
2004-04-01	361453339.90057100
2004-07-01	-473542905.48340000
2004-10-01	-1228689083.00868000
2005-01-01	-280831335.36117500
2005-04-01	-226406120.62209300
2005-07-01	-888406401.84262100
2005-10-01	-715280737.87207200
2006-01-01	-86728920.40960641
2006-04-01	-279028480.07359900
2006-07-01	-756569871.92532400
2006-10-01	671524023.90699400
2007-01-01	151696041.09830600
2007-04-01	1025618274.07422000
2007-07-01	-787941161.02960500
2007-10-01	176931582.83394100
2008-01-01	300690234.42416900
2008-04-01	-94660720.37897280
2008-07-01	-571912941.51814000
2008-10-01	-2365907163.67938000
2009-01-01	-1519116699.09458000
2009-04-01	-1361141966.10476000
2009-07-01	-1678459213.13502000
2009-10-01	-1498537228.44561000
2010-01-01	-1831002342.52221000
2010-04-01	-1183390312.52836010
2010-07-01	-1635848834.93245000
2010-10-01	-1825595951.28668000
2011-01-01	-3387711322.55666000
2011-04-01	-2769495622.91660000
2011-07-01	-4075775800.74642040
2011-10-01	-3720645317.45314000
2012-01-01	-3576742042.82996000
2012-04-01	-2608819120.07037000
2012-07-01	-2662492924.07278000
2012-10-01	-3081245264.48050980
2013-01-01	-1917489692.75671000
2013-04-01	-900101994.28157600
2013-07-01	-3184088731.18971970
2013-10-01	-2135451275.88561990
2014-01-01	-2131800949.66668990
2014-04-01	-817269616.08443810
2014-07-01	-1080280877.38385990
2014-10-01	172812179.45843400
2015-01-01	-1664053438.99635980
2015-04-01	154846683.22977100
2015-07-01	-1193740695.71757000
2015-10-01	-580402668.71826900
2016-01-01	-1841445439.95682000
2016-04-01	-320584824.46995600
2016-07-01	-1645799817.41723000
2016-10-01	-1801918638.07315000
2017-01-01	-2015075030.12914970
2017-04-01	-1238788756.58438010
2017-07-01	-2400893682.78468000
2017-10-01	-2070429126.39471000
2018-01-01	-1733208991.85846000
2018-04-01	-2113321030.54779980