Year	National Currency Units per US Dollar
1960-01-01	5.16839333333579
1961-01-01	5.16736083333308
1962-01-01	5.15572833333257
1963-01-01	5.18876916666704
1964-01-01	5.15131083333351
1965-01-01	5.15822666666645
1966-01-01	5.18962333333426
1967-01-01	5.16212333333291
1968-01-01	5.16822916666812
1969-01-01	5.17012000000007
1970-01-01	5.18623250000019
1971-01-01	5.10812750000211
1972-01-01	4.76241666666707
1973-01-01	4.35411299456766
1974-01-01	4.43334932714426
1975-01-01	4.15060050710433
1976-01-01	4.35662245269970
1977-01-01	4.48065403455212
1978-01-01	4.51681864966348
1979-01-01	4.28673299003424
1980-01-01	4.22921560240515
1981-01-01	5.05982604461614
1982-01-01	6.28224733086180
1983-01-01	7.66715669448011
1984-01-01	8.27312136542307
1985-01-01	8.60224685431921
1986-01-01	7.12359560079018
1987-01-01	6.34025604289012
1988-01-01	6.12875986852435
1989-01-01	6.44622656925941
1990-01-01	5.91836925388032
1991-01-01	6.04546458315686
1992-01-01	5.82302467606336
1993-01-01	7.78543950422200
1994-01-01	7.71570436735030
1995-01-01	7.13361872263605
1996-01-01	6.70707939697120
1997-01-01	7.63461683850189
1998-01-01	7.94707818958216
1999-01-01	8.26234340513619
2000-01-01	9.16059325272904
2001-01-01	10.33837678958680
2002-01-01	9.72104173530436
2003-01-01	8.07822306961371
2004-01-01	7.34599586068895
2005-01-01	7.47387105418993
2006-01-01	7.37330715680374
2007-01-01	6.75773017088129
2008-01-01	6.59710500073970
2009-01-01	7.65260470151829
2010-01-01	7.20219173724826
2011-01-01	6.48918810308049
2012-01-01	6.76893428932179
2013-01-01	6.51300535855449
2014-01-01	6.85987996196436
2015-01-01	8.42932522327310
2016-01-01	8.55645321303093
2017-01-01	8.54703068040655