Quarter	US Dollars, monthly level
1960-01-01	103173826.8725090000
1960-04-01	42131361.2503732000
1960-07-01	-21025317.6853601000
1960-10-01	-64129864.7758308000
1961-01-01	-12014924.9664697000
1961-04-01	-21305242.7466751000
1961-07-01	-54932261.8809375000
1961-10-01	-18313989.8606476000
1962-01-01	66290479.2701163100
1962-04-01	30123376.8284658000
1962-07-01	-37250734.4301914000
1962-10-01	-13689217.3479698000
1963-01-01	35632698.1476627000
1963-04-01	74427848.3913144000
1963-07-01	-62710209.3626188900
1963-10-01	-40203512.0467212000
1964-01-01	82462111.2378239000
1964-04-01	93204229.6313380000
1964-07-01	-57886853.2452410000
1964-10-01	-4689727.3834313500
1965-01-01	64647589.2730803900
1965-04-01	38196553.8520338000
1965-07-01	-113188512.1747820000
1965-10-01	-35262770.3325261000
1966-01-01	49787106.4677694000
1966-04-01	45330604.7672702000
1966-07-01	-56491357.6203141000
1966-10-01	-57114898.4962720000
1967-01-01	31782853.4966026000
1967-04-01	2153552.8484919397
1967-07-01	-35907451.7602275000
1967-10-01	39119144.6425899000
1968-01-01	61128972.7777758000
1968-04-01	81042860.2354417000
1968-07-01	-30714572.9955367000
1968-10-01	3057020.0533069503
1969-01-01	105089287.1409410000
1969-04-01	75881517.3502296000
1969-07-01	-8996718.9292547700
1969-10-01	34150263.1787303000
1970-01-01	94561750.7445262000
1970-04-01	-29180725.9666665000
1970-07-01	-50416428.4630701000
1970-10-01	-34680436.4107555000
1971-01-01	11592043.0270529000
1971-04-01	45248311.5597682000
1971-07-01	-15573546.7204106000
1971-10-01	-27212861.0057292000
1972-01-01	94266380.4158418900
1972-04-01	117932160.5202400000
1972-07-01	47312440.2087117000
1972-10-01	10009320.0441546010
1973-01-01	251361846.2799590000
1973-04-01	234306665.7468430000
1973-07-01	-34388666.1659151000
1973-10-01	-38874044.1393786000
1974-01-01	-14622972.0402015000
1974-04-01	-243003691.1862190000
1974-07-01	-454294924.7350910000
1974-10-01	-516288132.3376320600
1975-01-01	-381761754.4012420000
1975-04-01	-181327973.6159980000
1975-07-01	-198231166.8591460000
1975-10-01	-239006174.3837590200
1976-01-01	-232885532.1112139800
1976-04-01	64022202.3772080000
1976-07-01	-161205640.0564249800
1976-10-01	-130021353.3696630000
1977-01-01	-22525756.9210020970
1977-04-01	74342690.7294349000
1977-07-01	-158424020.4205700000
1977-10-01	-60058259.7672233000
1978-01-01	118729401.3419300000
1978-04-01	149767469.7622730000
1978-07-01	-26641244.2778113000
1978-10-01	7659252.4265589800
1979-01-01	199068023.4821120000
1979-04-01	74577659.7522635000
1979-07-01	-107323398.9947110000
1979-10-01	-6663569.4380842300
1980-01-01	20107387.9928561000
1980-04-01	107476969.5544740000
1980-07-01	-154853612.9290160000
1980-10-01	-26718029.6393342000
1981-01-01	211164489.1402480000
1981-04-01	16942291.8598526000
1981-07-01	-186717425.7691430000
1981-10-01	-151624900.3743310000
1982-01-01	-481488.0892738580
1982-04-01	-86779899.2062846000
1982-07-01	-227938818.3725339800
1982-10-01	126626585.2194710100
1983-01-01	141329308.8461920000
1983-04-01	181109695.6752670000
1983-07-01	-119807139.9075570000
1983-10-01	-113529131.8280689900
1984-01-01	-46660691.6884014000
1984-04-01	20202607.6086569020
1984-07-01	-417812732.3400240000
1984-10-01	-242461065.9662470000
1985-01-01	74644216.5060803000
1985-04-01	-2072158.3675057400
1985-07-01	-254227207.0373409700
1985-10-01	-78876955.1170348000
1986-01-01	-295941351.0051240000
1986-04-01	166641881.0873970000
1986-07-01	-57603997.6084650000
1986-10-01	-9034504.9053773900
1987-01-01	33295554.0900986000
1987-04-01	219577393.1006340000
1987-07-01	-142655627.2064580000
1987-10-01	-187889767.8536560000
1988-01-01	356850867.9965440000
1988-04-01	571398405.3574560000
1988-07-01	205552383.4744630200
1988-10-01	362898374.9758860000
1989-01-01	412487817.2437830000
1989-04-01	508952854.5218350000
1989-07-01	-312121930.5749080000
1989-10-01	-517482503.3107140000
1990-01-01	170657937.6199129800
1990-04-01	298250603.1312720000
1990-07-01	-289944325.5016820000
1990-10-01	-278184172.4316079600
1991-01-01	252941120.8623890000
1991-04-01	559866130.5044011000
1991-07-01	124300129.9158040000
1991-10-01	305842207.5427960000
1992-01-01	178116356.1621650200
1992-04-01	683288396.1731990000
1992-07-01	-281339699.9061240000
1992-10-01	954944.0547843550
1993-01-01	476255030.7609180000
1993-04-01	669588278.9980720000
1993-07-01	-232728031.2545460000
1993-10-01	-12143328.1027877000
1994-01-01	447314367.3588140000
1994-04-01	591047457.7048041000
1994-07-01	-297481647.5392650000
1994-10-01	-479004922.7686640000
1995-01-01	336136424.1546629700
1995-04-01	180045555.4604560000
1995-07-01	-483342310.0519780000
1995-10-01	-345918578.4932720000
1996-01-01	-4650063.2841402200
1996-04-01	312734015.8414600000
1996-07-01	-531513889.8243859400
1996-10-01	-145256181.7981720300
1997-01-01	36446882.7541802000
1997-04-01	436057611.5412159600
1997-07-01	-523990419.0501310000
1997-10-01	-234381549.0082810200
1998-01-01	86549660.1900574000
1998-04-01	209672497.3658530000
1998-07-01	-265028612.3662209800
1998-10-01	-500546740.6531860000
1999-01-01	-70207025.7536840900
1999-04-01	-33372332.3552011030
1999-07-01	-578662110.8493380000
1999-10-01	-1143258762.3161800000
2000-01-01	45415501.0459905000
2000-04-01	78929310.7439651000
2000-07-01	-474984123.5519979600
2000-10-01	-268457792.7969800000
2001-01-01	277631454.8331700000
2001-04-01	482240241.7687660000
2001-07-01	-79532232.5125518000
2001-10-01	-261869460.8241900000
2002-01-01	221364998.7282410000
2002-04-01	379399089.3461820000
2002-07-01	-562403549.1080210000
2002-10-01	-719538336.3042990000
2003-01-01	-39603021.3138839000
2003-04-01	-86853356.1779666100
2003-07-01	-896555704.4758480000
2003-10-01	-1014130765.2548200000
2004-01-01	-298991577.6307660000
2004-04-01	55950138.2602125000
2004-07-01	-1371465021.9772200000
2004-10-01	-1221027828.5268800000
2005-01-01	-428007363.7965240000
2005-04-01	-520671167.2155459500
2005-07-01	-1862311289.5178200000
2005-10-01	-1692458697.9418602000
2006-01-01	-795726952.5480020000
2006-04-01	-171196227.3473050000
2006-07-01	-1441234223.7864199000
2006-10-01	-1578032730.1124198000
2007-01-01	-622884500.3117030000
2007-04-01	-538448720.5904690000
2007-07-01	-1725990661.7080400000
2007-10-01	-1041150158.1546401000
2008-01-01	-87692446.5973467000
2008-04-01	-525309871.5140440000
2008-07-01	-2060408988.0083100000
2008-10-01	-1108530633.7575000000
2009-01-01	434782457.8290470000
2009-04-01	540498648.2516730000
2009-07-01	-980792515.7485920000
2009-10-01	-588238917.8513881000
2010-01-01	853160522.8428190000
2010-04-01	1155074830.6922002000
2010-07-01	-769636461.3158510000
2010-10-01	-465688429.8374320000
2011-01-01	586219168.1192200000
2011-04-01	1527127775.1654398000
2011-07-01	-1144172252.9652500000
2011-10-01	-389566458.6949440000
2012-01-01	193171761.2409710000
2012-04-01	695180341.8794200000
2012-07-01	-1217232768.9223099000
2012-10-01	-630800682.0165670000
2013-01-01	726506054.2275900000
2013-04-01	476211431.2002320000
2013-07-01	-1790436864.9440000000
2013-10-01	393827490.9238680000
2014-01-01	1661534755.7422600000
2014-04-01	836479197.3991490000
2014-07-01	-2327908922.1017900000
2014-10-01	-1075374430.5140100000
2015-01-01	598940785.2492280000
2015-04-01	269806960.7615300000
2015-07-01	-1926262609.5181198000
2015-10-01	-1160883660.7078100000
2016-01-01	376897048.6547460000
2016-04-01	552276748.9804031000
2016-07-01	-2152697507.4747000000
2016-10-01	-1081663346.5761402000
2017-01-01	-5144698.0392405700
2017-04-01	600565357.3488230000
2017-07-01	-1641298247.3374000000
2017-10-01	-1008069430.5181199000
2018-01-01	-454400961.4607830000
2018-04-01	80119714.2574460000
2018-07-01	-2158342172.5690300000