Quarter	National Currency Units per US Dollar
1960-01-01	7.14609333333404
1960-04-01	7.13267333333594
1960-07-01	7.12860666667014
1960-10-01	7.12741666666019
1961-01-01	7.14728666662995
1961-04-01	7.15905666659819
1961-07-01	7.14427333326603
1961-10-01	7.11946333330222
1962-01-01	7.12572333330657
1962-04-01	7.13131333333149
1962-07-01	7.14609333326613
1962-10-01	7.14762333326992
1963-01-01	7.14456000000064
1963-04-01	7.14438999996734
1963-07-01	7.15154333330186
1963-10-01	7.15768333330440
1964-01-01	7.15870999999849
1964-04-01	7.14881333329929
1964-07-01	7.16161666660143
1964-10-01	7.16127999993720
1965-01-01	7.15392666663198
1965-04-01	7.15290333326750
1965-07-01	7.15256666663239
1965-10-01	7.14319999993313
1966-01-01	7.14779333330322
1966-04-01	7.15682666666786
1966-07-01	7.15119999989596
1966-10-01	7.14676999993390
1967-01-01	7.15273666663173
1967-04-01	7.14710999997139
1967-07-01	7.15222333329924
1967-10-01	7.14966999999887
1968-01-01	7.14234999999947
1968-04-01	7.14286000000720
1968-07-01	7.14353999997062
1968-10-01	7.14336999993732
1969-01-01	7.14676999992905
1969-04-01	7.13945999993787
1969-07-01	7.14421999993404
1969-10-01	7.14711333330100
1970-01-01	7.14728333330034
1970-04-01	7.14745666666325
1970-07-01	7.15257999993143
1970-10-01	7.14116333329972
1971-01-01	7.14047999996304
1971-04-01	7.20558999999776
1971-07-01	7.00857333326227
1971-10-01	6.81963000000299
1972-01-01	6.65174333333562
1972-04-01	6.56925999999415
1972-07-01	6.53451000000253
1972-10-01	6.59747999999672
1973-01-01	6.23958548082822
1973-04-01	5.73110374012349
1973-07-01	5.42697807058830
1973-10-01	5.57974796883322
1974-01-01	5.78673242377445
1974-04-01	5.41936548679714
1974-07-01	5.47459306725296
1974-10-01	5.41022657093091
1975-01-01	5.00483015315791
1975-04-01	4.94149206795906
1975-07-01	5.41569872344929
1975-10-01	5.53132235347361
1976-01-01	5.53858293889719
1976-04-01	5.51368538504211
1976-07-01	5.50543785095215
1976-10-01	5.26957224973868
1977-01-01	5.26879870764875
1977-04-01	5.27969586223787
1977-07-01	5.34661589047864
1977-10-01	5.39144117999495
1978-01-01	5.24662012091854
1978-04-01	5.40513539626077
1978-07-01	5.28818499512143
1978-10-01	5.02602168342825
1979-01-01	5.08657698920279
1979-04-01	5.16042896340864
1979-07-01	5.01837156610377
1979-10-01	4.98608807977764
1980-01-01	4.94726747179788
1980-04-01	4.93672106191661
1980-07-01	4.84112590203972
1980-10-01	5.02241652537707
1981-01-01	5.34734597278364
1981-04-01	5.67679797101904
1981-07-01	6.08063913836624
1981-10-01	5.82276849858245
1982-01-01	5.95017328780630
1982-04-01	6.07595681851370
1982-07-01	6.63655654589335
1982-10-01	7.14148136365293
1983-01-01	7.10949331617464
1983-04-01	7.16964667280283
1983-07-01	7.40352568757138
1983-10-01	7.50079451666938
1984-01-01	7.68532572267376
1984-04-01	7.74169569599999
1984-07-01	8.37265363606540
1984-10-01	8.84188218618059
1985-01-01	9.36229830469404
1985-04-01	8.88863471098114
1985-07-01	8.33598046799706
1985-10-01	7.78844968717767
1986-01-01	7.32290261278503
1986-04-01	7.39236261087750
1986-07-01	7.38742156152601
1986-10-01	7.46457342706038
1987-01-01	7.03497683592517
1987-04-01	6.70919460641478
1987-07-01	6.73073184920252
1987-10-01	6.47196463898663
1988-01-01	6.36502131902407
1988-04-01	6.25578525693793
1988-07-01	6.83631760863604
1988-10-01	6.61123948627048
1989-01-01	6.72933843287211
1989-04-01	7.00495959050728
1989-07-01	7.03496525297949
1989-10-01	6.84398544130740
1990-01-01	6.53321344734569
1990-04-01	6.48867352126336
1990-07-01	6.15275153962991
1990-10-01	5.85845430445227
1991-01-01	5.98222423755761
1991-04-01	6.75328257147631
1991-07-01	6.81157625387915
1991-10-01	6.38865651557972
1992-01-01	6.35475348198053
1992-04-01	6.31088102031172
1992-07-01	5.79596023203865
1992-10-01	6.39632182338021
1993-01-01	6.95355086879454
1993-04-01	6.85137142322416
1993-07-01	7.24830454046076
1993-10-01	7.32441904431298
1994-01-01	7.45079371563890
1994-04-01	7.20567768319752
1994-07-01	6.83960513838547
1994-10-01	6.73010635375977
1995-01-01	6.52229556593095
1995-04-01	6.24057512068875
1995-07-01	6.30532801998657
1995-10-01	6.28052733541486
1996-01-01	6.41665431121727
1996-04-01	6.53674748549385
1996-07-01	6.44099549410836
1996-10-01	6.43501011042098
1997-01-01	6.62171543290043
1997-04-01	7.08314785714286
1997-07-01	7.45822670807454
1997-10-01	7.12617556826850
1998-01-01	7.54408246031746
1998-04-01	7.51483363636364
1998-07-01	7.63008871321915
1998-10-01	7.49198787878788
1999-01-01	7.66166920289855
1999-04-01	7.79500375901876
1999-07-01	7.84162727272727
1999-10-01	7.88931253968254
2000-01-01	8.21804214975845
2000-04-01	8.77672301054019
2000-07-01	8.95621566597654
2000-10-01	9.23576787878788
2001-01-01	8.88601242424242
2001-04-01	9.17485898205659
2001-07-01	8.99109338603425
2001-10-01	8.90147163665642
2002-01-01	8.90681905483406
2002-04-01	8.19077891304348
2002-07-01	7.52317015810277
2002-10-01	7.32145368856925
2003-01-01	7.05337629148629
2003-04-01	7.00567864357865
2003-07-01	7.33487680845724
2003-10-01	6.91617159075224
2004-01-01	6.90226442374051
2004-04-01	6.85695274170274
2004-07-01	6.86592878787879
2004-10-01	6.33217476629651
2005-01-01	6.28400654244306
2005-04-01	6.38954978354978
2005-07-01	6.46377020515716
2005-10-01	6.62829963924964
2006-01-01	6.67319110671937
2006-04-01	6.23436324110672
2006-07-01	6.33540372670807
2006-10-01	6.41616450216450
2007-01-01	6.22867081686429
2007-04-01	6.01310006901311
2007-07-01	5.75485823451910
2007-10-01	5.43718517786561
2008-01-01	5.31736024844720
2008-04-01	5.08632034632035
2008-07-01	5.37555364201017
2008-10-01	6.81204130434783
2009-01-01	6.87306969696970
2009-04-01	6.49443629148629
2009-07-01	6.10862557249513
2009-10-01	5.68426977853065
2010-01-01	5.85564910282954
2010-04-01	6.23162193362193
2010-07-01	6.15392424242424
2010-10-01	5.92619138590878
2011-01-01	5.72308619737750
2011-04-01	5.43686291486291
2011-07-01	5.50157641633729
2011-10-01	5.75677417027417
2012-01-01	5.78424386724387
2012-04-01	5.89389924085576
2012-07-01	5.90464980237154
2012-10-01	5.67689196310935
2013-01-01	5.63192049689441
2013-04-01	5.82826951659452
2013-07-01	5.98873242675199
2013-10-01	6.05716024844720
2014-01-01	6.09359242581090
2014-04-01	5.98409393939394
2014-07-01	6.24448363134450
2014-10-01	6.88538079710145
2015-01-01	7.74942348484848
2015-04-01	7.75414783549784
2015-07-01	8.22156431708388
2015-10-01	8.53213766233766
2016-01-01	8.64577425810904
2016-04-01	8.25173015873016
2016-07-01	8.32196993224167
2016-10-01	8.38142878787879
2017-01-01	8.43800740447958
2017-04-01	8.51676138998682
2017-07-01	7.96338226363009
2017-10-01	8.16588549783550
2018-01-01	7.84044718050066
2018-04-01	8.01504120082816
2018-07-01	8.23566190382082