Quarter	National Currency Units per US Dollar
1960-01-01	1.000000000000000
1960-04-01	1.000000000000000
1960-07-01	1.000000000000000
1960-10-01	1.000000000000000
1961-01-01	1.000000000000000
1961-04-01	1.000000000000000
1961-07-01	1.000000000000000
1961-10-01	1.000000000000000
1962-01-01	1.000000000000000
1962-04-01	1.000000000000000
1962-07-01	1.000000000000000
1962-10-01	1.000000000000000
1963-01-01	1.000000000000000
1963-04-01	1.000000000000000
1963-07-01	1.000000000000000
1963-10-01	1.000000000000000
1964-01-01	1.000000000000000
1964-04-01	1.000000000000000
1964-07-01	1.000000000000000
1964-10-01	1.000000000000000
1965-01-01	1.000000000000000
1965-04-01	1.000000000000000
1965-07-01	1.000000000000000
1965-10-01	1.000000000000000
1966-01-01	1.000000000000000
1966-04-01	1.000000000000000
1966-07-01	1.000000000000000
1966-10-01	1.000000000000000
1967-01-01	1.000000000000000
1967-04-01	1.000000000000000
1967-07-01	1.000000000000000
1967-10-01	1.000000000000000
1968-01-01	1.000000000000000
1968-04-01	1.000000000000000
1968-07-01	1.000000000000000
1968-10-01	1.000000000000000
1969-01-01	1.000000000000000
1969-04-01	1.000000000000000
1969-07-01	1.000000000000000
1969-10-01	1.000000000000000
1970-01-01	1.000000000000000
1970-04-01	1.000000000000000
1970-07-01	1.000000000000000
1970-10-01	1.000000000000000
1971-01-01	1.000000000000000
1971-04-01	1.000000000000000
1971-07-01	1.000000000000000
1971-10-01	0.988293333333786
1972-01-01	0.921050000000832
1972-04-01	0.921050000000832
1972-07-01	0.921050000000832
1972-10-01	0.921050000000832
1973-01-01	0.870445007085800
1973-04-01	0.828999996185303
1973-07-01	0.828999996185303
1973-10-01	0.828998408620320
1974-01-01	0.828999996185303
1974-04-01	0.828999996185303
1974-07-01	0.836533677201026
1974-10-01	0.831592626460665
1975-01-01	0.804143068537867
1975-04-01	0.803296316151667
1975-07-01	0.837751995188520
1975-10-01	0.850544627791360
1976-01-01	0.857261248934278
1976-04-01	0.871177057511191
1976-07-01	0.870209089734337
1976-10-01	0.864881024216160
1977-01-01	0.865220217039620
1977-04-01	0.860918518412050
1977-07-01	0.857071957746977
1977-10-01	0.844148959531919
1978-01-01	0.819359184178349
1978-04-01	0.815320094949321
1978-07-01	0.791147303963981
1978-10-01	0.774060986484542
1979-01-01	0.775614748085034
1979-04-01	0.784187089870353
1979-07-01	0.767697707816105
1979-10-01	0.768736218628676
1980-01-01	0.767383399621520
1980-04-01	0.770668254958259
1980-07-01	0.757755607727802
1980-10-01	0.778007863790958
1981-01-01	0.804388053003575
1981-04-01	0.846304032363390
1981-07-01	0.881838491795555
1981-10-01	0.861193609951551
1982-01-01	0.879946276304560
1982-04-01	0.894205135946393
1982-07-01	0.920668471900244
1982-10-01	0.928185743557943
1983-01-01	0.917735339810838
1983-04-01	0.927816119209966
1983-07-01	0.948224386655295
1983-10-01	0.950436173176506
1984-01-01	0.953609393762819
1984-04-01	0.952780415202505
1984-07-01	0.986418039108826
1984-10-01	0.994208625656054
1985-01-01	0.967014205546090
1985-04-01	0.994111207759742
1985-07-01	0.973805277330288
1985-10-01	0.927570870238966
1986-01-01	0.889059846024764
1986-04-01	0.861512768707234
1986-07-01	0.831670895560083
1986-10-01	0.829812073637651
1987-01-01	0.793354111243292
1987-04-01	0.772577203584440
1987-07-01	0.783598194433669
1987-10-01	0.745678362564263
1988-01-01	0.730653030763973
1988-04-01	0.722082400523008
1988-07-01	0.770321085617162
1988-10-01	0.744488240965517
1989-01-01	0.759750174211172
1989-04-01	0.788569092840859
1989-07-01	0.793947617212931
1989-10-01	0.779153968606676
1990-01-01	0.760148636409731
1990-04-01	0.762425084010004
1990-07-01	0.730054378283279
1990-10-01	0.697744560544662
1991-01-01	0.706945631088632
1991-04-01	0.747556773632292
1991-07-01	0.747401902190460
1991-10-01	0.722166701997042
1992-01-01	0.719837320483092
1992-04-01	0.720240827556296
1992-07-01	0.688627549800799
1992-10-01	0.712599157813996
1993-01-01	0.726587922403959
1993-04-01	0.707990857007123
1993-07-01	0.712806241981911
1993-10-01	0.717369288679153
1994-01-01	0.720906380769135
1994-04-01	0.706519638588934
1994-07-01	0.685273694787512
1994-10-01	0.681651941417354
1995-01-01	0.669881976005920
1995-04-01	0.638181783866435
1995-07-01	0.659484493100282
1995-10-01	0.669590435821990
1996-01-01	0.682465213898456
1996-04-01	0.691289689225660
1996-07-01	0.688838572763618
1996-10-01	0.692638702553485
1997-01-01	0.717825727272727
1997-04-01	0.723407222222222
1997-07-01	0.732780368906456
1997-10-01	0.731833108314264
1998-01-01	0.742588939393939
1998-04-01	0.745747272727273
1998-07-01	0.746178681222160
1998-10-01	0.714508152958153
1999-01-01	0.722979205436766
1999-04-01	0.741804889696594
1999-07-01	0.735854309744275
1999-10-01	0.724715793650794
2000-01-01	0.739107808833679
2000-04-01	0.753721739130435
2000-07-01	0.764320852311939
2000-10-01	0.776440606060606
2001-01-01	0.773591363636364
2001-04-01	0.793536694271912
2001-07-01	0.787193596837945
2001-10-01	0.786825150051237
2002-01-01	0.800505858585859
2002-04-01	0.783255429512516
2002-07-01	0.754877090783613
2002-10-01	0.752767313210563
2003-01-01	0.730778932178932
2003-04-01	0.715902020202020
2003-07-01	0.718182840830667
2003-10-01	0.692959189095928
2004-01-01	0.672462936507937
2004-04-01	0.685034199134199
2004-07-01	0.681415151515151
2004-10-01	0.662711070330636
2005-01-01	0.656647902001380
2005-04-01	0.669986507936508
2005-07-01	0.684431767990464
2005-10-01	0.696954329004329
2006-01-01	0.694314953886693
2006-04-01	0.679288998682477
2006-07-01	0.674792960662526
2006-10-01	0.671152236652237
2007-01-01	0.666717475827021
2007-04-01	0.659549319349551
2007-07-01	0.651956108906927
2007-10-01	0.635634224064898
2008-01-01	0.624859648618372
2008-04-01	0.614853598381237
2008-07-01	0.628962764558924
2008-10-01	0.664004312714203
2009-01-01	0.669945571789322
2009-04-01	0.658350563492064
2009-07-01	0.639849194428760
2009-10-01	0.628708245184767
2010-01-01	0.647934589510007
2010-04-01	0.672149139971140
2010-07-01	0.657237409090909
2010-10-01	0.642939522680218
2011-01-01	0.639741952380952
2011-04-01	0.626411198945981
2011-07-01	0.628124669207604
2011-10-01	0.640519824675325
2012-01-01	0.648713730158730
2012-04-01	0.653825912353347
2012-07-01	0.658412048550725
2012-10-01	0.650994586517347
2013-01-01	0.657119116528640
2013-04-01	0.664129333333333
2013-07-01	0.660102090783612
2013-10-01	0.651035188844971
2014-01-01	0.648817995169082
2014-04-01	0.647066847041847
2014-07-01	0.657017747349269
2014-10-01	0.680451413043478
2015-01-01	0.711127121212121
2015-04-01	0.715408549783550
2015-07-01	0.713631226864922
2015-10-01	0.718898183700358
2016-01-01	0.719352139406487
2016-04-01	0.709663131313131
2016-07-01	0.716357164815861
2016-10-01	0.733423520923521
2017-01-01	0.738460862977602
2017-04-01	0.728071557971014
2017-07-01	0.709740579710145
2017-10-01	0.708619877344877
2018-01-01	0.690892450592885
2018-04-01	0.699876052449966
2018-07-01	0.714001953227932