Year	National Currency Units per US Dollar
1960-01-01	4.319325000000390
1961-01-01	4.319516666666460
1962-01-01	4.324425000001310
1963-01-01	4.321724999997970
1964-01-01	4.319258333335410
1965-01-01	4.327749999997950
1966-01-01	4.326399999996890
1967-01-01	4.328316666662430
1968-01-01	4.316324999999780
1969-01-01	4.313149999998130
1970-01-01	4.310641666668140
1971-01-01	4.115250000002560
1972-01-01	3.819249999999250
1973-01-01	3.169117746624120
1974-01-01	2.978587772022740
1975-01-01	2.581893105839420
1976-01-01	2.499581139894600
1977-01-01	2.403644703080180
1978-01-01	1.788250962281030
1979-01-01	1.663177908140430
1980-01-01	1.676101603955080
1981-01-01	1.966302253887160
1982-01-01	2.029682426066170
1983-01-01	2.099389633065240
1984-01-01	2.349707500119660
1985-01-01	2.457439194744090
1986-01-01	1.798437611639980
1987-01-01	1.490729456769790
1988-01-01	1.463115447907320
1989-01-01	1.635499881309150
1990-01-01	1.388859644647600
1991-01-01	1.433676621288040
1992-01-01	1.405764831410750
1993-01-01	1.477358339522230
1994-01-01	1.367066450065020
1995-01-01	1.182080399346220
1996-01-01	1.236131873224360
1997-01-01	1.450017238224840
1998-01-01	1.449653558567040
1999-01-01	1.502732957200830
2000-01-01	1.687943380372440
2001-01-01	1.686947469195760
2002-01-01	1.556771422025170
2003-01-01	1.344816204905060
2004-01-01	1.242742731961150
2005-01-01	1.245938577857010
2006-01-01	1.253204204818720
2007-01-01	1.199871743854320
2008-01-01	1.083629985538260
2009-01-01	1.086098933433710
2010-01-01	1.042709049344370
2011-01-01	0.887214761747914
2012-01-01	0.937480038741452
2013-01-01	0.927016492251710
2014-01-01	0.915047219634230
2015-01-01	0.962342149209486
2016-01-01	0.985124702773072
2017-01-01	0.984746508093356