Year	National Currency Units per US Dollar
1960-01-01	1.711587126557790
1961-01-01	1.648199324472520
1962-01-01	1.635052933462210
1963-01-01	1.634053860686450
1964-01-01	1.636697130445170
1965-01-01	1.633773651403010
1966-01-01	1.642361063842340
1967-01-01	1.634697094142760
1968-01-01	1.642598164005250
1969-01-01	1.644504040912820
1970-01-01	1.641145311013400
1971-01-01	1.586532862006950
1972-01-01	1.456407603541300
1973-01-01	1.267933772290060
1974-01-01	1.219859539897110
1975-01-01	1.148052602202650
1976-01-01	1.200025562952170
1977-01-01	1.113935892956270
1978-01-01	0.981935009597452
1979-01-01	0.910279331975018
1980-01-01	0.901967591016967
1981-01-01	1.132419873758340
1982-01-01	1.211748218534500
1983-01-01	1.294982854670840
1984-01-01	1.456093738891840
1985-01-01	1.507646952941480
1986-01-01	1.111644302865020
1987-01-01	0.919264180253603
1988-01-01	0.897040294170588
1989-01-01	0.962456493821782
1990-01-01	0.826250580460526
1991-01-01	0.848429088521932
1992-01-01	0.797976291496310
1993-01-01	0.842741709813602
1994-01-01	0.825755203724628
1995-01-01	0.728453380889500
1996-01-01	0.765118822349583
1997-01-01	0.885264697563049
1998-01-01	0.900526838830881
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