Quarter	National Currency Units per US Dollar
1960-01-01	0.452992886927285
1960-04-01	0.452497909164631
1960-07-01	0.451794584313148
1960-10-01	0.451730483702488
1961-01-01	0.453273642946266
1961-04-01	0.454457792213289
1961-07-01	0.453349010366142
1961-10-01	0.451334435465985
1962-01-01	0.451280776334791
1962-04-01	0.451628676103360
1962-07-01	0.452868977420671
1962-10-01	0.453127284470426
1963-01-01	0.453003480775319
1963-04-01	0.453450898382015
1963-07-01	0.453580568267045
1963-10-01	0.453904791652911
1964-01-01	0.453839891107262
1964-04-01	0.453878046736519
1964-07-01	0.455664369287237
1964-10-01	0.455708149856181
1965-01-01	0.454625414569483
1965-04-01	0.454256851929917
1965-07-01	0.454641980418946
1965-10-01	0.452997944717297
1966-01-01	0.453392363456600
1966-04-01	0.454804523822826
1966-07-01	0.455271867852433
1966-10-01	0.454951076991838
1967-01-01	0.454484511734919
1967-04-01	0.454165189538035
1967-07-01	0.455849509796452
1967-10-01	0.486969964769001
1968-01-01	0.527739993194204
1968-04-01	0.530861441101929
1968-07-01	0.531382550074237
1968-10-01	0.532035944592016
1969-01-01	0.531264176625646
1969-04-01	0.531338528255058
1969-07-01	0.532036156215029
1969-10-01	0.530251501253655
1970-01-01	0.528295689831768
1970-04-01	0.528507312844840
1970-07-01	0.531723982643527
1970-10-01	0.531427710425227
1971-01-01	0.525967836687981
1971-04-01	0.525036695430467
1971-07-01	0.520254015335050
1971-10-01	0.507387336140301
1972-01-01	0.488552887976935
1972-04-01	0.488468238771706
1972-07-01	0.519407523282764
1972-10-01	0.537099207175544
1973-01-01	0.525248318443538
1973-04-01	0.501800488595212
1973-07-01	0.512339314646175
1973-10-01	0.534094160389928
1974-01-01	0.556864796596425
1974-04-01	0.529607752512812
1974-07-01	0.540146578563774
1974-10-01	0.544971583261805
1975-01-01	0.530454244565098
1975-04-01	0.546452944353305
1975-07-01	0.596057378617272
1975-10-01	0.621536789391084
1976-01-01	0.635376934445962
1976-04-01	0.703265597039309
1976-07-01	0.719179647622288
1976-10-01	0.769545924733313
1977-01-01	0.741019142571270
1977-04-01	0.738606640222255
1977-07-01	0.731792379201352
1977-10-01	0.700260550253694
1978-01-01	0.658274544460302
1978-04-01	0.691837954333447
1978-07-01	0.657851298434159
1978-10-01	0.640244263746608
1979-01-01	0.630044034516560
1979-04-01	0.634191845572762
1979-07-01	0.612563973636851
1979-10-01	0.604860895961048
1980-01-01	0.608373837978035
1980-04-01	0.616415512474753
1980-07-01	0.598385231761059
1980-10-01	0.648624535064240
1981-01-01	0.716767145273273
1981-04-01	0.790623576835237
1981-07-01	0.846872973709650
1981-10-01	0.803109334606457
1982-01-01	0.845730209439064
1982-04-01	0.874214666998492
1982-07-01	0.916327646599726
1982-10-01	0.941045214526481
1983-01-01	0.927712964702974
1983-04-01	0.998479700274094
1983-07-01	1.065902792238680
1983-10-01	1.095149092645170
1984-01-01	1.113729593192850
1984-04-01	1.122321487523550
1984-07-01	1.202780557093350
1984-10-01	1.248067881890660
1985-01-01	1.326664668945420
1985-04-01	1.252088719139020
1985-07-01	1.161683367954860
1985-10-01	1.062897745453070
1986-01-01	0.984047010782616
1986-04-01	0.938675036780080
1986-07-01	0.934357927313420
1986-10-01	0.934908147147406
1987-01-01	0.873622122561891
1987-04-01	0.856649956913554
1987-07-01	0.870278478955361
1987-10-01	0.815002547941077
1988-01-01	0.800358235436527
1988-04-01	0.810177543243046
1988-07-01	0.883018184342267
1988-10-01	0.842852136461291
1989-01-01	0.879674540735737
1989-04-01	0.919121070372270
1989-07-01	0.915481154547440
1989-10-01	0.869728259121375
1990-01-01	0.809034778972460
1990-04-01	0.795067660109739
1990-07-01	0.753758847958176
1990-10-01	0.713254203256286
1991-01-01	0.730057070494165
1991-04-01	0.825795321607725
1991-07-01	0.827657604122755
1991-10-01	0.773651411186900
1992-01-01	0.771069610427428
1992-04-01	0.766159956524168
1992-07-01	0.700472173266765
1992-10-01	0.747410157566031
1993-01-01	0.831932388986800
1993-04-01	0.842598188845605
1993-07-01	0.899694077772304
1993-10-01	0.896181135755316
1994-01-01	0.890255691389314
1994-04-01	0.867061809156674
1994-07-01	0.830578001703142
1994-10-01	0.813605836054805
1995-01-01	0.808442234535860
1995-04-01	0.781947033299304
1995-07-01	0.789099891141122
1995-10-01	0.792104937926738
1996-01-01	0.804633020300572
1996-04-01	0.808738506754160
1996-07-01	0.789988707796022
1996-10-01	0.772974217545071
1997-01-01	0.797226214843069
1997-04-01	0.834217917527972
1997-07-01	0.861474961611585
1997-10-01	0.861347987803742
1998-01-01	0.923861425865073
1998-04-01	0.904222810252034
1998-07-01	0.892922141354015
1998-10-01	0.849285476058665
1999-01-01	0.890865035397459
1999-04-01	0.946297424294416
1999-07-01	0.953590795041067
1999-10-01	0.963498337782132
2000-01-01	1.012899909945490
2000-04-01	1.070799525224050
2000-07-01	1.106582181474620
2000-10-01	1.150102663916010
2001-01-01	1.083835102585110
2001-04-01	1.144416038404250
2001-07-01	1.121785947013650
2001-10-01	1.116487265324860
2002-01-01	1.140732985400200
2002-04-01	1.087412111460310
2002-07-01	1.016582204256970
2002-10-01	0.999533230103932
2003-01-01	0.931511905508824
2003-04-01	0.880365741152534
2003-07-01	0.888370063279689
2003-10-01	0.840405156899637
2004-01-01	0.799904118865737
2004-04-01	0.829705986621947
2004-07-01	0.817877314843600
2004-10-01	0.771960956694930
2005-01-01	0.763091482381730
2005-04-01	0.794589826042209
2005-07-01	0.820007598424589
2005-10-01	0.840788753502769
2006-01-01	0.831325925187165
2006-04-01	0.795617708778127
2006-07-01	0.784593759317170
2006-10-01	0.775251489844097
2007-01-01	0.762709423148500
2007-04-01	0.741796455105816
2007-07-01	0.727338573417244
2007-10-01	0.690097257054422
2008-01-01	0.667464310519917
2008-04-01	0.640181056697950
2008-07-01	0.666884716732543
2008-10-01	0.761399275362319
2009-01-01	0.768604545454546
2009-04-01	0.734309884559885
2009-07-01	0.699093544137022
2009-10-01	0.677193719806763
2010-01-01	0.722664285714286
2010-04-01	0.786976190476190
2010-07-01	0.773787878787879
2010-10-01	0.736745718050066
2011-01-01	0.731408247066943
2011-04-01	0.694783549783550
2011-07-01	0.708233264320221
2011-10-01	0.742209956709957
2012-01-01	0.762537518037518
2012-04-01	0.779816425120773
2012-07-01	0.799138274044796
2012-10-01	0.770532624380451
2013-01-01	0.757865873015873
2013-04-01	0.765691004329004
2013-07-01	0.754941272978230
2013-10-01	0.734692482903570
2014-01-01	0.729664746721877
2014-04-01	0.729257503607504
2014-07-01	0.754988833992094
2014-10-01	0.800869478260870
2015-01-01	0.888312818181818
2015-04-01	0.904120108225108
2015-07-01	0.899525335654683
2015-10-01	0.913848313570487
2016-01-01	0.907330710835059
2016-04-01	0.885569054834055
2016-07-01	0.896160021645022
2016-10-01	0.928066320346321
2017-01-01	0.938476221343874
2017-04-01	0.909275285243742
2017-07-01	0.851432953761214
2017-10-01	0.849244235209235
2018-01-01	0.813750682476943
2018-04-01	0.839484382332643
2018-07-01	0.859573256916996