Year	US Dollar per National Currency Units
1960-01-01	0.000179805929870980
1961-01-01	0.000179805929870980
1962-01-01	0.000289687331458800
1963-01-01	0.000299676549784966
1964-01-01	0.000299676549784966
1965-01-01	0.000299676549784966
1966-01-01	0.000299676549784966
1967-01-01	0.000308000898373455
1968-01-01	0.000349622641315902
1969-01-01	0.000349622641315902
1970-01-01	0.000349622641315902
1971-01-01	0.000378757861433885
1972-01-01	0.000419547169599061
1973-01-01	0.000419547169599061
1974-01-01	0.000449514824577558
1975-01-01	0.000638311050942086
1976-01-01	0.000800448550906985
1977-01-01	0.001051818905769630
1978-01-01	0.001762562611296200
1979-01-01	0.002601783480784580
1980-01-01	0.005273708332343890
1981-01-01	0.011711108332690100
1982-01-01	0.024907349999216500
1983-01-01	0.058963624999201300
1984-01-01	0.315255000000214000
1985-01-01	1.208782499834590000
1986-01-01	1.489399999833330000
1987-01-01	1.593783333333330000
1988-01-01	1.607325000000000000
1989-01-01	1.920275000000000000
1990-01-01	2.021000000000000000
1991-01-01	2.291833333333330000
1992-01-01	2.478083333333330000
1993-01-01	2.839916666666670000
1994-01-01	3.013416666666670000
1995-01-01	3.011083333333330000
1996-01-01	3.190900000000000000
1997-01-01	3.465000000000000000
1998-01-01	3.809416666666670000
1999-01-01	4.153583333333330000
2000-01-01	4.067583333333330000
2001-01-01	4.219500000000000000
2002-01-01	4.736333333333330000
2003-01-01	4.512416666666670000
2004-01-01	4.483250000000000000
2005-01-01	4.502583333333330000
2006-01-01	4.442000000000000000
2007-01-01	4.084666666666670000
2008-01-01	3.567916666666670000
2009-01-01	3.927250000000000000
2010-01-01	3.731833333333330000
2011-01-01	3.581500000000000000
2012-01-01	3.843833333333330000
2013-01-01	3.601583333333330000
2014-01-01	3.592833333333330000
2015-01-01	3.888166666666670000
2016-01-01	3.832416666666670000
2017-01-01	3.575500000000000000