Quarter	National Currency Units per US Dollar
1960-01-01	6.90274333330066
1960-04-01	6.89957333329949
1960-07-01	6.88658333329658
1960-10-01	6.88736666666713
1961-01-01	6.91101666666994
1961-04-01	6.92793333330095
1961-07-01	6.90802666666665
1961-10-01	6.88357999993605
1962-01-01	6.88341666666868
1962-04-01	6.89385666666203
1962-07-01	6.91500333332806
1962-10-01	6.91325666666671
1963-01-01	6.90305999996781
1963-04-01	6.90321999996862
1963-07-01	6.90560000000308
1963-10-01	6.90416999999919
1964-01-01	6.91053333333305
1964-04-01	6.90512666663077
1964-07-01	6.92329666663621
1964-10-01	6.92537666666612
1965-01-01	6.91706666666626
1965-04-01	6.92089999999735
1965-07-01	6.93161999996907
1965-10-01	6.89211666660170
1966-01-01	6.89576333326598
1966-04-01	6.91213000000183
1966-07-01	6.92026333333342
1966-10-01	6.90512333333027
1967-01-01	6.91579333333842
1967-04-01	6.91818666663312
1967-07-01	6.93914666666630
1967-10-01	7.17526666666769
1968-01-01	7.45526999993308
1968-04-01	7.46547999993587
1968-07-01	7.51126999993479
1968-10-01	7.50582333326747
1969-01-01	7.51390999990205
1969-04-01	7.53087999996690
1969-07-01	7.52804333327125
1969-10-01	7.50396000000182
1970-01-01	7.49699999996422
1970-04-01	7.50319000000309
1970-07-01	7.50187666659864
1970-10-01	7.49606666660111
1971-01-01	7.48353666659871
1971-04-01	7.49456999996619
1971-07-01	7.42129333333287
1971-10-01	7.22733333333841
1972-01-01	7.10899999996763
1972-04-01	6.97666666663523
1972-07-01	6.93333333323729
1972-10-01	6.88900000000043
1973-01-01	6.50157787356923
1973-04-01	6.05185327339041
1973-07-01	5.64011378545849
1973-10-01	5.93852806988800
1974-01-01	6.42917887433962
1974-04-01	5.96841396277130
1974-07-01	6.05580048260736
1974-10-01	5.88863214610908
1975-01-01	5.52164884145051
1975-04-01	5.46799271000068
1975-07-01	5.91103937476453
1975-10-01	6.06433664128400
1976-01-01	6.14534739422913
1976-04-01	6.07698453453196
1976-07-01	6.07513831600998
1976-10-01	5.87931401870640
1977-01-01	5.88885246081711
1977-04-01	6.01034741413623
1977-07-01	6.05238724092938
1977-10-01	6.05297498493864
1978-01-01	5.67669748799843
1978-04-01	5.65054040460875
1978-07-01	5.51124243963332
1978-10-01	5.20583651603673
1979-01-01	5.15449766606996
1979-04-01	5.36353632481574
1979-07-01	5.23534794350671
1979-10-01	5.28873523827775
1980-01-01	5.53858363060724
1980-04-01	5.63695269067850
1980-07-01	5.49511629632100
1980-10-01	5.87250872572562
1981-01-01	6.46928197883424
1981-04-01	7.15888281795714
1981-07-01	7.63297025742903
1981-10-01	7.21894904354162
1982-01-01	7.77358717503755
1982-04-01	8.11292802199983
1982-07-01	8.65348746848829
1982-10-01	8.79294468015934
1983-01-01	8.52835554232438
1983-04-01	8.86593249769006
1983-07-01	9.50599169971967
1983-10-01	9.67891986786373
1984-01-01	9.84315546732100
1984-04-01	9.94142321525482
1984-07-01	10.63358202847570
1984-10-01	11.00274424797530
1985-01-01	11.64047080070250
1985-04-01	11.08177914033860
1985-07-01	10.29006814923760
1985-10-01	9.36567528259697
1986-01-01	8.64249112685902
1986-04-01	8.29317282747339
1986-07-01	7.84586871176055
1986-10-01	7.57493126715580
1987-01-01	6.94817292514818
1987-04-01	6.79809005767049
1987-07-01	7.03763182063467
1987-10-01	6.56951211856313
1988-01-01	6.41926800326037
1988-04-01	6.52518220993510
1988-07-01	7.12874680549977
1988-10-01	6.84759659237332
1989-01-01	7.19364085235293
1989-04-01	7.52217853084516
1989-07-01	7.47450033101168
1989-10-01	7.04997837868513
1990-01-01	6.51650605437478
1990-04-01	6.39330744165725
1990-07-01	6.08025967986844
1990-10-01	5.75537487828159
1991-01-01	5.88596999428489
1991-04-01	6.65051281195237
1991-07-01	6.72455629107868
1991-10-01	6.31015528067194
1992-01-01	6.28143409382213
1992-04-01	6.23514227030570
1992-07-01	5.65476488482212
1992-10-01	5.98213546492837
1993-01-01	6.28853333618330
1993-04-01	6.20702900494151
1993-07-01	6.73383181022875
1993-10-01	6.69931432179042
1994-01-01	6.72550541441386
1994-04-01	6.51235914698058
1994-07-01	6.15648907228189
1994-10-01	6.04652217077830
1995-01-01	5.86163419856130
1995-04-01	5.47083530968459
1995-07-01	5.56150068654283
1995-10-01	5.52099991072879
1996-01-01	5.67773686480557
1996-04-01	5.87129046462831
1996-07-01	5.77839849864577
1996-10-01	5.86557144927536
1997-01-01	6.32221466089466
1997-04-01	6.52754126984127
1997-07-01	6.88197796756384
1997-10-01	6.68456415713196
1998-01-01	6.92783141414141
1998-04-01	6.83100227272727
1998-07-01	6.71558013049752
1998-10-01	6.32287914862915
1999-01-01	6.62664775362319
1999-04-01	7.03306608946609
1999-07-01	7.09440519480520
1999-10-01	7.16553650793651
2000-01-01	7.54483070738440
2000-04-01	7.98407878129117
2000-07-01	8.24590169082126
2000-10-01	8.57730106060606
2001-01-01	8.07201772727273
2001-04-01	8.54120655969634
2001-07-01	8.36237548089592
2001-10-01	8.30765398184746
2002-01-01	8.47564104735003
2002-04-01	8.08593847446973
2002-07-01	7.55033124774255
2002-10-01	7.42519106956981
2003-01-01	6.91962702450582
2003-04-01	6.53724684876942
2003-07-01	6.60123221377782
2003-10-01	6.24990104852539
2004-01-01	5.95920254368419
2004-04-01	6.17252116146409
2004-07-01	6.08298946036353
2004-10-01	5.73553224737579
2005-01-01	5.67984508240416
2005-04-01	5.91736560590560
2005-07-01	6.11583646052718
2005-10-01	6.27132319125468
2006-01-01	6.20410491605418
2006-04-01	5.93428844171679
2006-07-01	5.85351682143111
2006-10-01	5.78013358918212
2007-01-01	5.68419084615439
2007-04-01	5.52640706329883
2007-07-01	5.41502939562578
2007-10-01	5.14539422091518
2008-01-01	4.97513129296851
2008-04-01	4.77688738508618
2008-07-01	4.97262359621055
2008-10-01	5.67114565217391
2009-01-01	5.72787878787879
2009-04-01	5.46715122655122
2009-07-01	5.20319452286844
2009-10-01	5.03944391116130
2010-01-01	5.37745182884748
2010-04-01	5.85484054834055
2010-07-01	5.76312121212121
2010-10-01	5.49161246000376
2011-01-01	5.45118992408558
2011-04-01	5.17972150072150
2011-07-01	5.27644123847167
2011-10-01	5.52035209235209
2012-01-01	5.66807503607503
2012-04-01	5.79588750862664
2012-07-01	5.94917081686429
2012-10-01	5.74664160235899
2013-01-01	5.65175134575569
2013-04-01	5.70693255411255
2013-07-01	5.63132236652237
2013-10-01	5.48100845410628
2014-01-01	5.44760741200828
2014-04-01	5.44136031746032
2014-07-01	5.62585221469352
2014-10-01	5.96009101449275
2015-01-01	6.61397227272727
2015-04-01	6.75880627705628
2015-07-01	6.71229262814480
2015-10-01	6.81656281761716
2016-01-01	6.77095445134576
2016-04-01	6.58604545454546
2016-07-01	6.66679707949056
2016-10-01	6.89933556998557
2017-01-01	6.98391835309618
2017-04-01	6.76789288537549
2017-07-01	6.33535231193927
2017-10-01	6.32000880230880
2018-01-01	6.05812881422925
2018-04-01	6.24689627329192
2018-07-01	6.41041264822134