Year	National Currency Units per US Dollar
1960-01-01	0.000179999605382631
1961-01-01	0.000179999605382631
1962-01-01	0.000289999364288684
1963-01-01	0.000299999342371052
1964-01-01	0.000299999342371052
1965-01-01	0.000299999342371052
1966-01-01	0.000299999342371052
1967-01-01	0.000308332657439692
1968-01-01	0.000349999232782894
1969-01-01	0.000349999232782894
1970-01-01	0.000350000000000000
1971-01-01	0.000375215083333333
1972-01-01	0.000420000000000000
1973-01-01	0.000420000000000000
1974-01-01	0.000445500000000000
1975-01-01	0.000632598750000000
1976-01-01	0.000793632000000000
1977-01-01	0.001047502916666670
1978-01-01	0.001747510916666670
1979-01-01	0.002543616333333330
1980-01-01	0.005124934750000000
1981-01-01	0.011425275666666700
1982-01-01	0.024267043250000000
1983-01-01	0.056231276916666700
1984-01-01	0.293209807916667000
1985-01-01	1.178861268583330000
1986-01-01	1.487839063416670000
1987-01-01	1.594645291000000000
1988-01-01	1.598939880916670000
1989-01-01	1.916412268416670000
1990-01-01	2.016172660333330000
1991-01-01	2.279108816666670000
1992-01-01	2.459039730666670000
1993-01-01	2.830047908833330000
1994-01-01	3.011181839500000000
1995-01-01	3.011381848767180000
1996-01-01	3.187229561139340000
1997-01-01	3.448896527385660000
1998-01-01	3.799340954576820000
1999-01-01	4.139053625541130000
2000-01-01	4.076589254344690000
2001-01-01	4.206043721375240000
2002-01-01	4.736465069169960000
2003-01-01	4.546993344155840000
2004-01-01	4.480752795815290000
2005-01-01	4.487233856421360000
2006-01-01	4.457341864295120000
2007-01-01	4.108949794529140000
2008-01-01	3.584779763473240000
2009-01-01	3.926750242330130000
2010-01-01	3.730539571961850000
2011-01-01	3.574146744620120000
2012-01-01	3.850048405640260000
2013-01-01	3.609113259928480000
2014-01-01	3.577102118232010000
2015-01-01	3.886946311719680000
2016-01-01	3.839471602672690000
2017-01-01	3.599433774076160000