Quarterly US Dollars, monthly level
1960-01-01 30726566.833056000
1960-04-01 18302828.618968400
1960-07-01 33487340.602476400
1960-10-01 108425720.620843010
1961-01-01 81596452.328159600
1961-04-01 58093126.385809300
1961-07-01 59977827.050997800
1961-10-01 146341463.414634000
1962-01-01 95565410.199556600
1962-04-01 68736141.906873600
1962-07-01 68847006.651884700
1962-10-01 147228381.374723000
1963-01-01 124279379.157428000
1963-04-01 49667405.764966700
1963-07-01 61640798.226164095
1963-10-01 131485587.583148990
1964-01-01 97898230.088495600
1964-04-01 69800884.955752200
1964-07-01 59402654.867256600
1964-10-01 181858407.079646020
1965-01-01 106305309.734513000
1965-04-01 99778761.061946900
1965-07-01 88163716.814159300
1965-10-01 166814159.292034980
1966-01-01 144358407.079646000
1966-04-01 88384955.752212400
1966-07-01 75663716.814159300
1966-10-01 186393805.309734020
1967-01-01 134734513.274336000
1967-04-01 94469026.548672600
1967-07-01 82853982.300885000
1967-10-01 208075221.238938000
1968-01-01 156305309.734513000
1968-04-01 74336283.185840710
1968-07-01 73783185.840708000
1968-10-01 189712389.380531000
1969-01-01 125575774.336283000
1969-04-01 118313938.053097010
1969-07-01 103484734.513274000
1969-10-01 187083517.699114980
1970-01-01 187721681.417573000
1970-04-01 136760619.470224000
1970-07-01 90638338.905112600
1970-10-01 154117989.950470000
1971-01-01 161626800.670773000
1971-04-01 91222244.556540500
1971-07-01 103861239.531474000
1971-10-01 256558431.819539000
1972-01-01 253118021.203079020
1972-04-01 156288904.594668000
1972-07-01 144427985.866675000
1972-10-01 285478515.902938000
1973-01-01 304509142.857143000
1973-04-01 302948928.571428000
1973-07-01 268949642.857143000
1973-10-01 411511714.285714000
1974-01-01 499536785.714286000
1974-04-01 371924142.857143000
1974-07-01 262796071.428571000
1974-10-01 379319785.714285970
1975-01-01 363520857.142856960
1975-04-01 289309710.399546000
1975-07-01 351566147.680483000
1975-10-01 396899525.423729000
1976-01-01 829833438.235294000
1976-04-01 376730314.691943000
1976-07-01 330614625.000000000
1976-10-01 439957886.462882000
1977-01-01 522018516.320475040
1977-04-01 400218685.714285970
1977-07-01 310969190.761335000
1977-10-01 521368519.480520000
1978-01-01 548728582.677164900
1978-04-01 467881040.000000000
1978-07-01 456444080.000000000
1978-10-01 825110920.000000000
1979-01-01 886649480.000000000
1979-04-01 559922535.256419000
1979-07-01 339110902.705778960
1979-10-01 430796680.623006050
1980-01-01 847763133.285491000
1980-04-01 595137107.825309000
1980-07-01 544124341.873499000
1980-10-01 924787733.426688000
1981-01-01 1230487747.684130000
1981-04-01 1035381488.080310100
1981-07-01 1006948365.188939900
1981-10-01 1503897707.867080200
1982-01-01 1304167299.618610000
1982-04-01 1235918216.299420000
1982-07-01 1278641266.884570000
1982-10-01 1931409507.495420000
1983-01-01 1361004545.025160000
1983-04-01 1313155001.896050000
1983-07-01 1237752301.806090000
1983-10-01 1825057316.650800000
1984-01-01 1863522137.720450200
1984-04-01 1687028966.945940000
1984-07-01 1540374673.891220000
1984-10-01 2063684449.453489800
1985-01-01 1775126236.669790000
1985-04-01 1860941377.651870000
1985-07-01 2086350270.445109800
1985-10-01 2228633942.319330000
1986-01-01 1876874917.569020000
1986-04-01 1686257498.502170000
1986-07-01 1660128322.733240000
1986-10-01 2235743703.067260000
1987-01-01 1990839269.120570200
1987-04-01 2230245623.854230000
1987-07-01 2634364766.667040000
1987-10-01 3314044981.954090000
1988-01-01 2800638418.301500000
1988-04-01 2714626288.802010000
1988-07-01 2605858755.985050000
1988-10-01 3534833301.423080000
1989-01-01 2812229682.750330000
1989-04-01 2571868779.538270000
1989-07-01 2573516108.974100000
1989-10-01 3679157050.877760000
1990-01-01 2971748486.447930300
1990-04-01 2753997270.534480000
1990-07-01 2862966365.783900300
1990-10-01 4366062178.577821000
1991-01-01 3395489780.823710000
1991-04-01 2910319321.537220000
1991-07-01 3217058977.651940000
1991-10-01 4105058731.506200300
1992-01-01 3555955904.009649800
1992-04-01 3304008316.415469600
1992-07-01 3704993422.604590000
1992-10-01 4173697876.588310200
1993-01-01 3671681202.174200000
1993-04-01 3467610871.962140000
1993-07-01 3565174871.223660000
1993-10-01 4645307573.413919000
1994-01-01 3824984127.050830000
1994-04-01 3769462858.527600000
1994-07-01 4815453671.536970000
1994-10-01 5606372361.918660000
1995-01-01 4764953236.379730000
1995-04-01 5177820042.110769000
1995-07-01 5271944363.973370000
1995-10-01 6430725242.997120000
1996-01-01 5540416776.711620000
1996-04-01 5192861181.205480000
1996-07-01 5743965075.148399000
1996-10-01 6701136699.155490000
1997-01-01 6102065282.613420500
1997-04-01 6359482645.931789000
1997-07-01 6534055044.646570000
1997-10-01 7345140570.865610000
1998-01-01 6740438836.848350000
1998-04-01 6589132386.852770000
1998-07-01 6654353283.470890000
1998-10-01 6982689515.689190000
1999-01-01 6525013373.477970000
1999-04-01 6315334910.269429000
1999-07-01 6473441741.968960000
1999-10-01 7289541604.627450000
2000-01-01 6703512337.197860000
2000-04-01 7092379392.121230000
2000-07-01 6729667573.733190000
2000-10-01 7223147132.348240000
2001-01-01 7395752570.446720000
2001-04-01 8017339677.207801000
2001-07-01 7645347304.449030000
2001-10-01 8275356192.200829500
2002-01-01 7844571840.667030000
2002-04-01 8440164520.005340000
2002-07-01 9245032249.196640000
2002-10-01 10327335849.868200000
2003-01-01 10317275568.049400000
2003-04-01 11300926815.777300000
2003-07-01 12131639793.307100000
2003-10-01 13316819305.026300000
2004-01-01 13489033025.392100000
2004-04-01 15495063845.138000000
2004-07-01 16010671394.603000000
2004-10-01 18174955982.458103000
2005-01-01 17315231039.360300000
2005-04-01 18235663021.355800000
2005-07-01 18200432594.985203000
2005-10-01 20061418909.921500000
2006-01-01 18696792271.213800000
2006-04-01 21415704072.640900000
2006-07-01 21633226803.897600000
2006-10-01 24263878939.969997000
2007-01-01 23279883719.399600000
2007-04-01 26571827354.522400000
2007-07-01 26891728627.745800000
2007-10-01 31124040331.397300000
2008-01-01 33250860569.352802000
2008-04-01 35789518320.645400000
2008-07-01 36690726130.037605000
2008-10-01 27027506137.704000000
2009-01-01 24596833363.414600000
2009-04-01 23399137349.090298000
2009-07-01 25509377496.976997000
2009-10-01 29188895830.536300000
2010-01-01 26144855303.373400000
2010-04-01 28863194883.462200000
2010-07-01 27045550273.644700000
2010-10-01 32370717604.160200000
2011-01-01 31589383940.531500000
2011-04-01 34310780267.428100000
2011-07-01 33981821907.257397000
2011-10-01 35639111581.434100000
2012-01-01 35448323559.042300000
2012-04-01 39171596103.070000000
2012-07-01 38813107354.273700000
2012-10-01 39813138091.976810000
2013-01-01 37116148422.239494000
2013-04-01 38153654176.391000000
2013-07-01 37284332294.077896000
2013-10-01 39463173537.451500000
2014-01-01 40185612865.148000000
2014-04-01 39978548073.798900000
2014-07-01 38341723222.742600000
2014-10-01 39236932398.112110000
2015-01-01 37043947498.016600000
2015-04-01 36399466175.026100000
2015-07-01 33737576754.223904000
2015-10-01 36748718632.829100000
2016-01-01 34677319422.955400000
2016-04-01 36958239074.154000000
2016-07-01 32638391680.031197000
2016-10-01 38265907440.032300000
2017-01-01 37845029261.889100000
2017-04-01 39605759906.663795000
2017-07-01 37746850140.659294000
2017-10-01 41941495429.258300000
2018-01-01 41214992224.098900000
2018-04-01 40929850425.974000000
2018-07-01 40599751525.771194000