Year	National Currency Units per US Dollar
1960-01-01	1.889554854666440
1961-01-01	1.888459917298310
1962-01-01	1.878612142661620
1963-01-01	1.878345069996050
1964-01-01	1.877968988079230
1965-01-01	1.877673451886950
1966-01-01	1.878531596937080
1967-01-01	1.878457712889010
1968-01-01	1.879079065621150
1969-01-01	1.880121920791460
1970-01-01	1.879855453732840
1971-01-01	1.810565539995490
1972-01-01	1.679856786068130
1973-01-01	1.423950907078090
1974-01-01	1.358483584417980
1975-01-01	1.266039500107800
1976-01-01	1.303682816992850
1977-01-01	1.200844700575810
1978-01-01	1.055957476702300
1979-01-01	0.971554035885846
1980-01-01	0.940410698410160
1981-01-01	1.157202846837160
1982-01-01	1.239728906104280
1983-01-01	1.305784878721150
1984-01-01	1.453944196953070
1985-01-01	1.503248475687300
1986-01-01	1.109575493751350
1987-01-01	0.918833528338772
1988-01-01	0.897125547165881
1989-01-01	0.961500960492625
1990-01-01	0.826234408649036
1991-01-01	0.848091666666667
1992-01-01	0.798741666666667
1993-01-01	0.845391666666667
1994-01-01	0.829891666666667
1995-01-01	0.732766666666667
1996-01-01	0.768791666666667
1997-01-01	0.886400000000000
1998-01-01	0.899383333333333
1999-01-01	0.938562898128768
2000-01-01	1.085096070140040
2001-01-01	1.116631088331970
2002-01-01	1.061065132805350
2003-01-01	0.885163216710171
2004-01-01	0.804862094256554
2005-01-01	0.804619415087824
2006-01-01	0.796697220781640
2007-01-01	0.730485427181495
2008-01-01	0.683982339828182
2009-01-01	0.719800423489554
2010-01-01	0.755043518257105
2011-01-01	0.719158754470168
2012-01-01	0.778006210395884
2013-01-01	0.753297658306669
2014-01-01	0.753695140645586
2015-01-01	0.901451643908024
2016-01-01	0.904281526915114
2017-01-01	0.887107173889516