Year	National Currency Units per US Dollar
1960-01-01	0.452253966026888
1961-01-01	0.453103720247921
1962-01-01	0.452226428582312
1963-01-01	0.453484934769322
1964-01-01	0.454772614246800
1965-01-01	0.454130547908911
1966-01-01	0.454604958030924
1967-01-01	0.462867293959602
1968-01-01	0.530504982240597
1969-01-01	0.531222590587347
1970-01-01	0.529988673936340
1971-01-01	0.519661470898450
1972-01-01	0.508381964301737
1973-01-01	0.518370570518713
1974-01-01	0.542897677733704
1975-01-01	0.573625339231690
1976-01-01	0.706842025960218
1977-01-01	0.727919678062143
1978-01-01	0.662052015243629
1979-01-01	0.620415187421805
1980-01-01	0.617949779319522
1981-01-01	0.789343257606154
1982-01-01	0.894329434390941
1983-01-01	1.021811137465230
1984-01-01	1.171724879925100
1985-01-01	1.200833625373090
1986-01-01	0.947997030505881
1987-01-01	0.853888276592971
1988-01-01	0.834101524870783
1989-01-01	0.896001256194206
1990-01-01	0.767778872574165
1991-01-01	0.789290351852886
1992-01-01	0.746277974446098
1993-01-01	0.867601447840006
1994-01-01	0.850375334575984
1995-01-01	0.792898524225756
1996-01-01	0.794083613098956
1997-01-01	0.838566770446592
1998-01-01	0.892572963382447
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