Quarter	National Currency Units per US Dollar
1960-01-01	0.720686653330024
1960-04-01	0.719891290000305
1960-07-01	0.718752516663396
1960-10-01	0.718666726666319
1961-01-01	0.721103129996967
1961-04-01	0.723014526666399
1961-07-01	0.721215523327070
1961-10-01	0.718030319993583
1962-01-01	0.717961319996902
1962-04-01	0.718511743329752
1962-07-01	0.721328059997177
1962-10-01	0.720859326662927
1963-01-01	0.720686373329954
1963-04-01	0.721396643333113
1963-07-01	0.721604989999832
1963-10-01	0.722125966663346
1964-01-01	0.722004313329914
1964-04-01	0.722091693329882
1964-07-01	0.724482289999894
1964-10-01	0.724988836667156
1965-01-01	0.723275229993306
1965-04-01	0.722682996663328
1965-07-01	0.722423136667203
1965-10-01	0.720703443329815
1966-01-01	0.721311249996991
1966-04-01	0.722668496663270
1966-07-01	0.724287779999940
1966-10-01	0.722911203329810
1967-01-01	0.723031366659901
1967-04-01	0.722526963333924
1967-07-01	0.725058413330165
1967-10-01	0.799531796662753
1968-01-01	0.893258916659761
1968-04-01	0.898561573326030
1968-07-01	0.899442749994099
1968-10-01	0.900550193323700
1969-01-01	0.899254363323053
1969-04-01	0.899362616656921
1969-07-01	0.900550529999843
1969-10-01	0.897533346656322
1970-01-01	0.894135306657214
1970-04-01	0.894563076662962
1970-07-01	0.900063756662954
1970-10-01	0.899469649993383
1971-01-01	0.890265846660138
1971-04-01	0.888651943330236
1971-07-01	0.879825273329819
1971-10-01	0.852170596657137
1972-01-01	0.836820079990503
1972-04-01	0.836820079990503
1972-07-01	0.836820079990503
1972-10-01	0.836820079990503
1973-01-01	0.787518085698365
1973-04-01	0.745732091927709
1973-07-01	0.715642760939435
1973-10-01	0.679090652501944
1974-01-01	0.702387994161715
1974-04-01	0.680372381147503
1974-07-01	0.692140684123545
1974-10-01	0.757826832525628
1975-01-01	0.742041330054927
1975-04-01	0.749343839730707
1975-07-01	0.865948592846513
1975-10-01	0.946293544855671
1976-01-01	0.953532827852758
1976-04-01	0.996638628956560
1976-07-01	0.997644995198107
1976-10-01	1.046182003761070
1977-01-01	1.040142627933400
1977-04-01	1.033322835725450
1977-07-01	1.024882461440920
1977-10-01	1.002743007097030
1978-01-01	0.972935083428278
1978-04-01	0.979511774037823
1978-07-01	0.949617808244446
1978-10-01	0.941345133762511
1979-01-01	0.946194153662884
1979-04-01	0.957994662709050
1979-07-01	0.986754062878857
1979-10-01	1.022349967731200
1980-01-01	1.026483400396560
1980-04-01	1.031300012081390
1980-07-01	1.017453819900370
1980-10-01	1.033365872135770
1981-01-01	1.064464015304730
1981-04-01	1.134026031361690
1981-07-01	1.205678275997330
1981-10-01	1.209427604221160
1982-01-01	1.257528511064820
1982-04-01	1.312257620042880
1982-07-01	1.366118970973490
1982-10-01	1.394071826970940
1983-01-01	1.417379555842900
1983-04-01	1.513598639641660
1983-07-01	1.532247570066740
1983-10-01	1.521873771233070
1984-01-01	1.520635409218270
1984-04-01	1.538721614663220
1984-07-01	1.956460367834740
1984-10-01	2.052241748657780
1985-01-01	2.180835764908050
1985-04-01	2.197664556634030
1985-07-01	1.920495090552160
1985-10-01	1.803362741233400
1986-01-01	1.905882865251350
1986-04-01	1.796019554310200
1986-07-01	1.989765289886000
1986-10-01	1.959622379469000
1987-01-01	1.825389655193450
1987-04-01	1.724110463532530
1987-07-01	1.654083099424470
1987-10-01	1.576933865982390
1988-01-01	1.513431734192200
1988-04-01	1.465166943327860
1988-07-01	1.556280757210210
1988-10-01	1.581822376686430
1989-01-01	1.617102292758810
1989-04-01	1.675943039559880
1989-07-01	1.706650596511540
1989-10-01	1.696555536434930
1990-01-01	1.687844263309500
1990-04-01	1.728804178723010
1990-07-01	1.644098708175050
1990-10-01	1.650998088731720
1991-01-01	1.675002275452470
1991-04-01	1.712436975132330
1991-07-01	1.743790486356050
1991-10-01	1.785728527752590
1992-01-01	1.838141572478150
1992-04-01	1.853628494342170
1992-07-01	1.842776338259380
1992-10-01	1.905617392854430
1993-01-01	1.923692151946880
1993-04-01	1.850261378311200
1993-07-01	1.816453023390340
1993-10-01	1.812336438059980
1994-01-01	1.756811362085380
1994-04-01	1.720837282592600
1994-07-01	1.661909183606850
1994-10-01	1.608826983542670
1995-01-01	1.562287215140870
1995-04-01	1.495971918391270
1995-07-01	1.509990664631680
1995-10-01	1.527568456431660
1996-01-01	1.485943002876270
1996-04-01	1.465852212355420
1996-07-01	1.446189036102090
1996-10-01	1.416568737060040
1997-01-01	1.434038333333330
1997-04-01	1.448742806637810
1997-07-01	1.545662591442370
1997-10-01	1.621733611746760
1998-01-01	1.729009538239540
1998-04-01	1.872119848484850
1998-07-01	1.971359636740070
1998-10-01	1.901611327561330
1999-01-01	1.862706254767350
1999-04-01	1.843406428571430
1999-07-01	1.904906060606060
1999-10-01	1.955906349206350
2000-01-01	2.009932663906140
2000-04-01	2.093099729907770
2000-07-01	2.271038164251210
2000-10-01	2.444681818181820
2001-01-01	2.315187878787880
2001-04-01	2.416601656314700
2001-07-01	2.387607200263510
2001-10-01	2.407441157956370
2002-01-01	2.353802041847040
2002-04-01	2.161198959156780
2002-07-01	2.119316387477260
2002-10-01	2.018967741818320
2003-01-01	1.821534862914860
2003-04-01	1.758332293884830
2003-07-01	1.713106713093670
2003-10-01	1.601083747412010
2004-01-01	1.481822984817120
2004-04-01	1.590388455988460
2004-07-01	1.532578787878790
2004-10-01	1.431264009034450
2005-01-01	1.396142822636300
2005-04-01	1.397706060606060
2005-07-01	1.447708811719680
2005-10-01	1.441734559884560
2006-01-01	1.506122266139660
2006-04-01	1.602984716732540
2006-07-01	1.575250517598340
2006-10-01	1.482194805194800
2007-01-01	1.436920816864290
2007-04-01	1.349385093167700
2007-07-01	1.348053425559950
2007-10-01	1.309532872200260
2008-01-01	1.267013309711460
2008-04-01	1.288982710430370
2008-07-01	1.405936113101600
2008-10-01	1.739967391304350
2009-01-01	1.882176643202480
2009-04-01	1.659615440115440
2009-07-01	1.484192603049120
2009-10-01	1.374054968944100
2010-01-01	1.410619675638370
2010-04-01	1.429017027417030
2010-07-01	1.391631818181820
2010-10-01	1.319006766421980
2011-01-01	1.322641432022080
2011-04-01	1.250216017316020
2011-07-01	1.202586150323110
2011-10-01	1.290341269841270
2012-01-01	1.222558874458870
2012-04-01	1.265819875776400
2012-07-01	1.236258267457180
2012-10-01	1.214956452726020
2013-01-01	1.198318802622500
2013-04-01	1.220642787878790
2013-07-01	1.253687393813910
2013-10-01	1.208904766610200
2014-01-01	1.195023132160110
2014-04-01	1.161731435786440
2014-07-01	1.188205127674260
2014-10-01	1.278366427536230
2015-01-01	1.330565015151520
2015-04-01	1.368720180375180
2015-07-01	1.536980575945790
2015-10-01	1.500714261873390
2016-01-01	1.507295942028990
2016-04-01	1.447461450216450
2016-07-01	1.383987780287340
2016-10-01	1.407357878787880
2017-01-01	1.405403766139660
2017-04-01	1.418692504611330
2017-07-01	1.369358122843340
2017-10-01	1.436151277056280
2018-01-01	1.374940651515150
2018-04-01	1.420039213250520
2018-07-01	1.496075457839260