Year	US Dollar per National Currency Units
1960-01-01	4.77299999841436
1961-01-01	4.76499999841534
1962-01-01	4.77499999841411
1963-01-01	4.78499999841288
1964-01-01	4.79499999841166
1965-01-01	4.77499999841411
1966-01-01	7.57599999807043
1967-01-01	7.54699999807399
1968-01-01	7.62799999806405
1969-01-01	7.55899999807251
1970-01-01	7.57599999807043
1971-01-01	7.27899999810687
1972-01-01	8.07999999800859
1973-01-01	8.20299999799350
1974-01-01	8.14999999900000
1975-01-01	8.93654999900000
1976-01-01	8.88098999900000
1977-01-01	8.20849999900000
1978-01-01	8.18832999900000
1979-01-01	7.90669999900000
1980-01-01	7.93020999900000
1981-01-01	9.09917999900000
1982-01-01	9.63390999900000
1983-01-01	10.49320000000000
1984-01-01	12.45140000000000
1985-01-01	12.16550000000000
1986-01-01	13.12200000000000
1987-01-01	12.87720000000000
1988-01-01	14.94890000000000
1989-01-01	17.03520000000000
1990-01-01	18.07320000000000
1991-01-01	25.83380000000000
1992-01-01	26.20000000000000
1993-01-01	31.38000000000000
1994-01-01	31.38000000000000
1995-01-01	35.18000000000000
1996-01-01	35.93000000000000
1997-01-01	39.28000000000000
1998-01-01	42.48000000000000
1999-01-01	43.49000000000000
2000-01-01	46.75000000000000
2001-01-01	48.18000000000000
2002-01-01	48.03000000000000
2003-01-01	45.60500000000000
2004-01-01	43.58500000000000
2005-01-01	45.06500000000000
2006-01-01	44.24500000000000
2007-01-01	39.41500000000000
2008-01-01	48.45500000000000
2009-01-01	46.68000000000000
2010-01-01	44.81000000000000
2011-01-01	53.26000000000000
2012-01-01	54.77730000000000
2013-01-01	61.89700000000000
2014-01-01	63.33150000000000
2015-01-01	66.32600000000000
2016-01-01	67.95470000000000
2017-01-01	63.92730000000000