Year	US Dollar per National Currency Units
1960-01-01	1.004016065265080
1961-01-01	0.958405214642903
1962-01-01	0.928332715306659
1963-01-01	0.925411808254673
1964-01-01	0.931272118580063
1965-01-01	0.930232559004867
1966-01-01	0.922679462006532
1967-01-01	0.925411808254673
1968-01-01	0.932140194754046
1969-01-01	0.932140194754046
1970-01-01	0.988924051610882
1971-01-01	0.997804829375374
1972-01-01	1.004419446569320
1973-01-01	1.004217715408940
1974-01-01	1.008878128540030
1975-01-01	0.983864621196246
1976-01-01	0.990883868410622
1977-01-01	0.913742690058480
1978-01-01	0.843170320404722
1979-01-01	0.856091088824665
1980-01-01	0.837030217491446
1981-01-01	0.843241420729607
1982-01-01	0.813404913627302
1983-01-01	0.803600129221794
1984-01-01	0.756773119418798
1985-01-01	0.715563506261181
1986-01-01	0.724375226367258
1987-01-01	0.769349130635482
1988-01-01	0.838433805651044
1989-01-01	0.863707030575229
1990-01-01	0.861846074291131
1991-01-01	0.865351332641052
1992-01-01	0.786720163637794
1993-01-01	0.755287009063444
1994-01-01	0.712859994297120
1995-01-01	0.732493407559332
1996-01-01	0.730140186915888
1997-01-01	0.699741095794556
1998-01-01	0.653381247958184
1999-01-01	0.692856647959537
2000-01-01	0.666577789628050
2001-01-01	0.627904056260203
2002-01-01	0.633071663712332
2003-01-01	0.773754255648406
2004-01-01	0.830840810900631
2005-01-01	0.858737655646200
2006-01-01	0.858148116364885
2007-01-01	1.012043315453900
2008-01-01	0.816593173281071
2009-01-01	0.955474871010892
2010-01-01	0.999100809271656
2011-01-01	0.979431929480901
2012-01-01	1.004823151125400
2013-01-01	0.939849624060150
2014-01-01	0.862143288214501
2015-01-01	0.722543352601156
2016-01-01	0.744768004766515
2017-01-01	0.794407372100413