Quarter	US Dollar per National Currency Units
1991-01-01	3.31700000000000
1991-04-01	3.22300000000000
1991-07-01	3.35000000000000
1991-10-01	3.59200000000000
1992-01-01	3.44500000000000
1992-04-01	3.58600000000000
1992-07-01	3.70300000000000
1992-10-01	3.45600000000000
1993-01-01	3.46860908775581
1993-04-01	3.37359152553809
1993-07-01	3.48723671362812
1993-10-01	3.33834084460023
1994-01-01	3.40089783702898
1994-04-01	3.53731871241599
1994-07-01	3.57909806728704
1994-10-01	3.56518948982138
1995-01-01	3.87341674090715
1995-04-01	3.82819079702932
1995-07-01	3.79377062862779
1995-10-01	3.75911585595068
1996-01-01	3.65644082050532
1996-04-01	3.62174495672015
1996-07-01	3.71181470620987
1996-10-01	3.65871505927118
1997-01-01	3.42442298472707
1997-04-01	3.11973544643414
1997-07-01	3.05008235222351
1997-10-01	2.88716941910151
1998-01-01	2.96929746421997
1998-04-01	2.99195165006134
1998-07-01	3.34045964724746
1998-10-01	3.34952269301625
1999-01-01	2.78978937090250
1999-04-01	2.82493855758637
1999-07-01	2.95508274231678
1999-10-01	2.77939909391590
2000-01-01	2.68463582914978
2000-04-01	2.64823495140489
2000-07-01	2.49887550602229
2000-10-01	2.64459312934705
2001-01-01	2.57486417591472
2001-04-01	2.53948905480217
2001-07-01	2.70885253006826
2001-10-01	2.75793596072699
2002-01-01	2.82853425354981
2002-04-01	3.40750332231574
2002-07-01	3.25425493833187
2002-10-01	3.31773995554229
2003-01-01	3.41099021045810
2003-04-01	3.61912344830082
2003-07-01	3.65911668923122
2003-10-01	3.89802759803539
2004-01-01	3.72314680367847
2004-04-01	3.82570105971919
2004-07-01	3.91972405142678
2004-10-01	4.47127207690588
2005-01-01	4.32900432900433
2005-04-01	4.02641327105814
2005-07-01	4.07547784977789
2005-10-01	4.06702456482837
2006-01-01	4.23316259577530
2006-04-01	4.46169633694731
2006-07-01	4.46927374301676
2006-10-01	4.79018969151178
2007-01-01	4.75669504828046
2007-04-01	4.70411139335779
2007-07-01	5.13557929334429
2007-10-01	5.53158535236199
2008-01-01	6.24063904143784
2008-04-01	6.59761166457742
2008-07-01	5.79878225572630
2008-10-01	5.16902718908301
2009-01-01	4.86263068319961
2009-04-01	5.45911125668741
2009-07-01	5.82139946443125
2009-10-01	5.44425087108014
2010-01-01	5.29997880008480
2010-04-01	4.77395331073662
2010-07-01	5.54785020804438
2010-10-01	5.33304890405845
2011-01-01	5.78904712284358
2011-04-01	5.93647966755714
2011-07-01	5.45523975778736
2011-10-01	5.01504513540622
2012-01-01	5.39927649694941
2012-04-01	4.91135013015078
2012-07-01	5.17705529095051
2012-10-01	5.24796641301496
2013-01-01	4.98206456755680
2013-04-01	5.04006854493221
2013-07-01	5.24824183898394
2013-10-01	5.02664119835126
2014-01-01	5.02487312195367
2014-04-01	4.97512437810945
2014-07-01	4.57603075092665
2014-10-01	4.37943417710432
2015-01-01	3.90838739935903
2015-04-01	4.10728221136074
2015-07-01	4.12099233495426
2015-10-01	4.02835965194973
2016-01-01	4.20928568421939
2016-04-01	4.09282527728891
2016-07-01	4.13052457662123
2016-10-01	3.90030812434182
2017-01-01	3.95538327663951
2017-04-01	4.35691878703381
2017-07-01	4.54483479525519
2017-10-01	4.69682025268893
2018-01-01	4.84472651518822
2018-04-01	4.48068823371270
2018-07-01	4.55228296990941