Year	National Currency Units per US Dollar
1960-01-01	0.320664387370219
1961-01-01	0.320764235704043
1962-01-01	0.320631161976377
1963-01-01	0.321030254045149
1964-01-01	0.322517563838376
1965-01-01	0.322735207383268
1966-01-01	0.322518725866400
1967-01-01	0.322336416581021
1968-01-01	0.321958154940513
1969-01-01	0.323983526746442
1970-01-01	0.323899989843014
1971-01-01	0.319355212169102
1972-01-01	0.301206314202048
1973-01-01	0.300572991714310
1974-01-01	0.335863395428668
1975-01-01	0.337101488945240
1976-01-01	0.429762498687339
1977-01-01	0.455696145165705
1978-01-01	0.438330466997543
1979-01-01	0.429136436722840
1980-01-01	0.442313752730766
1981-01-01	0.586978210683428
1982-01-01	0.698591127098321
1983-01-01	0.784469469650410
1984-01-01	0.907277574924985
1985-01-01	0.986131496812600
1986-01-01	0.770062353562950
1987-01-01	0.669830722643708
1988-01-01	0.672275078716639
1989-01-01	0.708417489985040
1990-01-01	0.618909204294856
1991-01-01	0.640740082736395
1992-01-01	0.636288805280255
1993-01-01	0.811693703185334
1994-01-01	0.832871306687601
1995-01-01	0.841326282835899
1996-01-01	0.796915835601440
1997-01-01	0.879402881140888
1998-01-01	0.896773315016328
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