Year	National Currency Units per US Dollar
1960-01-01	2.46180889882528
1961-01-01	2.46180889882528
1962-01-01	2.46180889882528
1963-01-01	2.46180889882528
1964-01-01	2.46180889882528
1965-01-01	2.46180889882528
1966-01-01	2.46180889882528
1967-01-01	2.46180889882528
1968-01-01	2.46180889882528
1969-01-01	2.46180889882528
1970-01-01	2.46180889882528
1971-01-01	2.46180889882528
1972-01-01	2.24506644860066
1973-01-01	1.98941552463247
1974-01-01	1.96110708887637
1975-01-01	1.85982338938658
1976-01-01	1.94141535102098
1977-01-01	1.85782338223958
1978-01-01	1.68358941885647
1979-01-01	1.55493895401486
1980-01-01	1.49838605814132
1981-01-01	1.70454166583333
1982-01-01	1.89254166583333
1983-01-01	1.97567499916667
1984-01-01	2.32004166625000
1985-01-01	2.93665833325000
1986-01-01	3.45279166658333
1987-01-01	3.72210000000000
1988-01-01	3.72210000000000
1989-01-01	3.76510833333333
1990-01-01	4.78320833333333
1991-01-01	5.32339166666667
1992-01-01	5.51459166666667
1993-01-01	5.76195833333333
1994-01-01	8.61874266666666
1995-01-01	8.35141666666667
1996-01-01	8.31417500000000
1997-01-01	8.28981666666667
1998-01-01	8.27895833333334
1999-01-01	8.27825000000000
2000-01-01	8.27850416666666
2001-01-01	8.27706833333334
2002-01-01	8.27695750000000
2003-01-01	8.27703666666666
2004-01-01	8.27680083333333
2005-01-01	8.19431666666666
2006-01-01	7.97343833333333
2007-01-01	7.60753250000000
2008-01-01	6.94865500000000
2009-01-01	6.83141605176666
2010-01-01	6.77026902870939
2011-01-01	6.46146132655007
2012-01-01	6.31233282683186
2013-01-01	6.19575834608231
2014-01-01	6.14343409448867
2015-01-01	6.22748867298455
2016-01-01	6.64447782944681
2017-01-01	6.75875508633597