Quarter	US Dollars, monthly level
1960-01-01	-284970005.699400000
1960-04-01	-264204197.624740000
1960-07-01	-259371194.009653030
1960-10-01	-275367048.709371030
1961-01-01	-339287571.140510000
1961-04-01	-338170059.818525970
1961-07-01	-186876139.783353000
1961-10-01	-180432134.963237020
1962-01-01	-322066723.636692000
1962-04-01	-314145234.980636000
1962-07-01	-351198262.696300000
1962-10-01	-423605511.059379000
1963-01-01	-524860010.497200000
1963-04-01	-683966274.829986900
1963-07-01	-670952683.086683000
1963-10-01	-671586277.146626000
1964-01-01	-759321758.180368000
1964-04-01	-449600000.000000000
1964-07-01	9599999.999999980
1964-10-01	-91200000.000000100
1965-01-01	-92799999.999999900
1965-04-01	3199999.999999990
1965-07-01	6403996.093562370
1965-10-01	-96000000.000000000
1966-01-01	-224037279.803359000
1966-04-01	-59246828.693399200
1966-07-01	-84969622.024126100
1966-10-01	-185665651.374326000
1967-01-01	-257573075.027890000
1967-04-01	-209704684.578542000
1967-07-01	-263001045.054966030
1967-10-01	-393134533.846744000
1968-01-01	54435099.752320400
1968-04-01	-80196492.098507000
1968-07-01	-48226988.358540700
1968-10-01	-27266851.047608800
1969-01-01	-67074829.424982400
1969-04-01	-9562393.020728061
1969-07-01	-133632627.996990000
1969-10-01	-531045425.912784040
1970-01-01	-459249669.732216000
1970-04-01	-433969592.455394000
1970-07-01	-393763969.055785000
1970-10-01	-475129282.784857000
1971-01-01	-542422058.925009000
1971-04-01	-255130557.848046000
1971-07-01	61437144.142857600
1971-10-01	-129812084.683489010
1972-01-01	-156793950.025904980
1972-04-01	-72127851.769250500
1972-07-01	-185832028.494243980
1972-10-01	-320952720.403268000
1973-01-01	-1140643416.638500000
1973-04-01	-1492506114.964890000
1973-07-01	-1321931004.165799900
1973-10-01	-1628377209.525240000
1974-01-01	-3033120246.470480000
1974-04-01	-3110605845.046620000
1974-07-01	-2600347549.688979600
1974-10-01	-2094576866.632380000
1975-01-01	-946931838.936928000
1975-04-01	-727044947.817158000
1975-07-01	-473918223.981175000
1975-10-01	-1400442787.057669900
1976-01-01	-1784107085.141800000
1976-04-01	-1978235692.387140000
1976-07-01	-882157979.851083000
1976-10-01	-2029773959.379559800
1977-01-01	-1563623086.917540000
1977-04-01	-1013402263.746550100
1977-07-01	377270177.978246030
1977-10-01	-588800066.085310000
1978-01-01	-462888879.831340000
1978-04-01	264390976.737962040
1978-07-01	-122920089.649718000
1978-10-01	-106890908.579930000
1979-01-01	-850864133.562311000
1979-04-01	-748401413.400532000
1979-07-01	-276727634.499119040
1979-10-01	-3775940553.203520300
1980-01-01	-4580911671.363270000
1980-04-01	-4704379219.915020000
1980-07-01	-6915574378.650700000
1980-10-01	-5770667832.279751000
1981-01-01	-4876351929.633560000
1981-04-01	-5299520889.775880000
1981-07-01	-3323485845.960310000
1981-10-01	-2261302520.840970000
1982-01-01	-4478034014.670830000
1982-04-01	-3197571350.750550000
1982-07-01	-2802063296.628910000
1982-10-01	-2222754143.539490000
1983-01-01	-2933321703.262600000
1983-04-01	-1777335186.171800100
1983-07-01	-2098209017.838020000
1983-10-01	-887931424.373073100
1984-01-01	-2512035634.910990000
1984-04-01	-3556553658.985699700
1984-07-01	-1577525907.575000000
1984-10-01	-3275011090.014310000
1985-01-01	-4060051980.658330000
1985-04-01	-4432783496.971451000
1985-07-01	-284819199.936538000
1985-10-01	-3220295525.918560000
1986-01-01	-3549498938.940430000
1986-04-01	-694717131.925520000
1986-07-01	1799651170.101800200
1986-10-01	315111945.866970000
1987-01-01	-3050764892.379750300
1987-04-01	-3951488934.782940000
1987-07-01	342407793.068641000
1987-10-01	-1979357506.222190000
1988-01-01	-5233364450.050549500
1988-04-01	-1568694252.060150000
1988-07-01	-1042005710.848470000
1988-10-01	-2273652486.626110000
1989-01-01	-7101944415.802070000
1989-04-01	-3164675875.572160200
1989-07-01	-605281561.375370000
1989-10-01	-1483312546.564220000
1990-01-01	-7308668114.921800000
1990-04-01	-1754169369.175119900
1990-07-01	257364795.146117000
1990-10-01	-2799421825.015660000
1991-01-01	-5631895023.125100000
1991-04-01	-3978885072.667250000
1991-07-01	-1935252443.313810000
1991-10-01	-1545260651.804730000
1992-01-01	-6400231180.528460500
1992-04-01	-4597144235.605700500
1992-07-01	620950608.155667100
1992-10-01	17636009.949744500
1993-01-01	1328477241.162800000
1993-04-01	4628498900.221670000
1993-07-01	7255071644.463150000
1993-10-01	7688349588.799960000
1994-01-01	4399921489.036930000
1994-04-01	5411148973.322140000
1994-07-01	7652668574.676320000
1994-10-01	4681026246.573050500
1995-01-01	4591190238.838420000
1995-04-01	6062481963.023200000
1995-07-01	7913863063.903180000
1995-10-01	6715733411.089990000
1996-01-01	6651696019.344460000
1996-04-01	11955848224.797100000
1996-07-01	13902236220.419600000
1996-10-01	11124295855.766400000
1997-01-01	6353362343.677140000
1997-04-01	7844120221.323501000
1997-07-01	9614701447.816410000
1997-10-01	6447133687.068120000
1998-01-01	3824376823.098170300
1998-04-01	7478775426.548140000
1998-07-01	9719899224.253350000
1998-10-01	6210077998.784800000
1999-01-01	2901561849.766340300
1999-04-01	3936500200.005860000
1999-07-01	5679480158.747500000
1999-10-01	2365753951.633100000
2000-01-01	430644721.869386000
2000-04-01	-382050972.533260000
2000-07-01	2269420240.124840000
2000-10-01	-549342262.932224000
2001-01-01	10979529.977961300
2001-04-01	823913654.089257000
2001-07-01	3226907958.364660000
2001-10-01	4172282250.478340000
2002-01-01	660890856.711322000
2002-04-01	1455381987.492020000
2002-07-01	4496340759.123289000
2002-10-01	930534345.419700000
2003-01-01	-2519774558.026580000
2003-04-01	-1358753463.570710000
2003-07-01	4088836567.263300000
2003-10-01	1802582941.766640000
2004-01-01	-3064867328.694800000
2004-04-01	-347834057.670238000
2004-07-01	3106578399.825000300
2004-10-01	-1323382991.251099800
2005-01-01	-5436307567.019600000
2005-04-01	-2091141801.143240200
2005-07-01	-375728225.679770000
2005-10-01	-3865774829.241100000
2006-01-01	-10341190788.756500000
2006-04-01	-6870887789.055560000
2006-07-01	-5016991217.755481000
2006-10-01	-3162715624.697580000
2007-01-01	-6811637357.977770000
2007-04-01	-1357380441.857690000
2007-07-01	-518740534.036765040
2007-10-01	-2921762084.095620000
2008-01-01	-7298217931.990300000
2008-04-01	-2841227463.652040000
2008-07-01	-4141795321.885820400
2008-10-01	-4704758877.391070000
2009-01-01	-6559419964.161730000
2009-04-01	78032450.883244300
2009-07-01	1204559829.027610000
2009-10-01	-2559828818.989420000
2010-01-01	-12353869115.277800000
2010-04-01	-8704964753.577590000
2010-07-01	-6753401214.019970000
2010-10-01	-12186701300.094799000
2011-01-01	-18638291343.674600000
2011-04-01	-10117395557.494000000
2011-07-01	-5041700495.990180000
2011-10-01	-1740343131.107810000
2012-01-01	-5469239088.370740000
2012-04-01	3966318097.904870000
2012-07-01	5341253370.828710000
2012-10-01	8693596855.014560000
2013-01-01	2944056566.528190000
2013-04-01	12124995523.665300000
2013-07-01	9864343448.360851000
2013-10-01	13976323753.060299000
2014-01-01	9012221063.910740000
2014-04-01	14008769124.024500000
2014-07-01	14111069621.609200000
2014-10-01	18087841269.038100000
2015-01-01	7738602730.139811000
2015-04-01	10677895461.203800000
2015-07-01	12393091731.970402000
2015-10-01	15462850661.495500000
2016-01-01	9242164846.687761000
2016-04-01	15361083278.309801000
2016-07-01	15363550780.502998000
2016-10-01	14962185024.469200000
2017-01-01	7043438980.834810000
2017-04-01	13692333006.348701000
2017-07-01	15635993346.498600000
2017-10-01	17750370712.008400000
2018-01-01	9255783327.977010000
2018-04-01	13729618135.329300000