Quarter	National Currency Units per US Dollar
1960-01-01	0.320780676248664
1960-04-01	0.320581323885615
1960-07-01	0.320581323885615
1960-10-01	0.320714225460981
1961-01-01	0.321180069583960
1961-04-01	0.320714225460981
1961-07-01	0.320581323885615
1961-10-01	0.320581323885615
1962-01-01	0.320714225460981
1962-04-01	0.320581323885615
1962-07-01	0.320581323885615
1962-10-01	0.320647774673298
1963-01-01	0.320780676248664
1963-04-01	0.320913749976329
1963-07-01	0.320980200764012
1963-10-01	0.321446389191590
1964-01-01	0.321713569560719
1964-04-01	0.322785561930929
1964-07-01	0.322785561930929
1964-10-01	0.322785561930929
1965-01-01	0.322785561930929
1965-04-01	0.322785561930929
1965-07-01	0.322584143740284
1965-10-01	0.322785561930929
1966-01-01	0.322731850413424
1966-04-01	0.322530432222779
1966-07-01	0.322141195873165
1966-10-01	0.322671424956230
1967-01-01	0.322819303781670
1967-04-01	0.322624427378413
1967-07-01	0.322047889326730
1967-10-01	0.321854045837271
1968-01-01	0.322577429800596
1968-04-01	0.321994694266123
1968-07-01	0.321266317886108
1968-10-01	0.321994177809224
1969-01-01	0.323387922827567
1969-04-01	0.324055012988891
1969-07-01	0.324639125741761
1969-10-01	0.323852045427549
1970-01-01	0.324999784809625
1970-04-01	0.324890812403917
1970-07-01	0.323962739356254
1970-10-01	0.321746622802261
1971-01-01	0.321820303986531
1971-04-01	0.321861276233859
1971-07-01	0.319438060463331
1971-10-01	0.314301207992687
1972-01-01	0.303034872891350
1972-04-01	0.300732508035209
1972-07-01	0.300149256043837
1972-10-01	0.300908619837798
1973-01-01	0.297474370826383
1973-04-01	0.305547452920650
1973-07-01	0.295747562753817
1973-10-01	0.303522580356390
1974-01-01	0.333052966098048
1974-04-01	0.329737502173423
1974-07-01	0.337439613277074
1974-10-01	0.343223500166127
1975-01-01	0.329421774855779
1975-04-01	0.324630277113557
1975-07-01	0.343274250664077
1975-10-01	0.351079653147547
1976-01-01	0.394845811792777
1976-04-01	0.444862338413548
1976-07-01	0.433816358255822
1976-10-01	0.445525486287209
1977-01-01	0.455807110234282
1977-04-01	0.457644818818312
1977-07-01	0.455854073381639
1977-10-01	0.453478578228587
1978-01-01	0.445174450532897
1978-04-01	0.445371375548520
1978-07-01	0.432761322887132
1978-10-01	0.430014719021624
1979-01-01	0.433383205854555
1979-04-01	0.437510763822538
1979-07-01	0.421783893775145
1979-10-01	0.423867883439121
1980-01-01	0.425823034322004
1980-04-01	0.440006886091988
1980-07-01	0.435535281753061
1980-10-01	0.467889808756010
1981-01-01	0.517266910090018
1981-04-01	0.585208312890248
1981-07-01	0.627645042616302
1981-10-01	0.617792577137142
1982-01-01	0.651621106560552
1982-04-01	0.681756349407194
1982-07-01	0.719558239983749
1982-10-01	0.741428812441791
1983-01-01	0.722749082858624
1983-04-01	0.763061367130273
1983-07-01	0.812760152251494
1983-10-01	0.839307276361251
1984-01-01	0.858967482152110
1984-04-01	0.865164431269055
1984-07-01	0.928647915838184
1984-10-01	0.976330470440589
1985-01-01	1.044313361945050
1985-04-01	1.017164531117390
1985-07-01	0.979171086676961
1985-10-01	0.903877007511005
1986-01-01	0.825806025674794
1986-04-01	0.794626696345723
1986-07-01	0.741721333629435
1986-10-01	0.718095358601848
1987-01-01	0.675342712190621
1987-04-01	0.671168432088500
1987-07-01	0.687412017263433
1987-10-01	0.645399729032280
1988-01-01	0.637949098008026
1988-04-01	0.654681561283636
1988-07-01	0.715462358038910
1988-10-01	0.681007297535984
1989-01-01	0.700880111416968
1989-04-01	0.727519956755342
1989-07-01	0.715877313942098
1989-10-01	0.689392577825751
1990-01-01	0.647985336067112
1990-04-01	0.636823497411690
1990-07-01	0.608033590356717
1990-10-01	0.582794393343904
1991-01-01	0.593221227755771
1991-04-01	0.665221930137154
1991-07-01	0.672507294953700
1991-10-01	0.632009878098956
1992-01-01	0.629570497227487
1992-04-01	0.628896021732506
1992-07-01	0.583867280906072
1992-10-01	0.702821421254956
1993-01-01	0.797732564845468
1993-04-01	0.776610321218976
1993-07-01	0.818919572167105
1993-10-01	0.853512354509788
1994-01-01	0.870245403103217
1994-04-01	0.828827987143666
1994-07-01	0.811668121353599
1994-10-01	0.820743715149919
1995-01-01	0.846861009397794
1995-04-01	0.861511841495934
1995-07-01	0.831616613385530
1995-10-01	0.825315667064339
1996-01-01	0.812770154300106
1996-04-01	0.803238701214190
1996-07-01	0.785636197431143
1996-10-01	0.786018289460320
1997-01-01	0.846355002143296
1997-04-01	0.873099825954025
1997-07-01	0.910459887653409
1997-10-01	0.887696808812821
1998-01-01	0.924725821639888
1998-04-01	0.913438311805688
1998-07-01	0.898682156930593
1998-10-01	0.850246969689144
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