Year	National Currency Units per US Dollar
1960-01-01	0.361297525032154
1961-01-01	0.361107354785459
1962-01-01	0.360874512679352
1963-01-01	0.360670368901230
1964-01-01	0.360675778010169
1965-01-01	0.360769636067137
1966-01-01	0.360955699397786
1967-01-01	0.367909159023796
1968-01-01	0.421108496708457
1969-01-01	0.421302523449489
1970-01-01	0.420877107048269
1971-01-01	0.417909609782874
1972-01-01	0.386363786616662
1973-01-01	0.349552346150918
1974-01-01	0.346425430424836
1975-01-01	0.344986156687862
1976-01-01	0.402267418332472
1977-01-01	0.456839217241835
1978-01-01	0.460960357241595
1979-01-01	0.403585838552122
1980-01-01	0.431056048385481
1981-01-01	0.554507590782878
1982-01-01	0.659919153855092
1983-01-01	0.862589400550527
1984-01-01	0.966437480717528
1985-01-01	1.022062653508510
1986-01-01	0.841217460202982
1987-01-01	0.742363189611306
1988-01-01	0.700033256003109
1989-01-01	0.711585259577128
1990-01-01	0.612687165186174
1991-01-01	0.624646855304332
1992-01-01	0.615431436539132
1993-01-01	0.764744730125532
1994-01-01	0.805118870177379
1995-01-01	0.749375899013939
1996-01-01	0.761427543984069
1997-01-01	0.879955344800644
1998-01-01	0.897785721154424
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