Year	National Currency Units per US Dollar
1970-01-01	0.000815190
1971-01-01	0.000790360
1972-01-01	0.000763366
1973-01-01	0.000791648
1974-01-01	0.000945666
1975-01-01	0.000868902
1976-01-01	0.000800476
1977-01-01	0.000881797
1978-01-01	0.000882836
1979-01-01	0.000914879
1980-01-01	0.000925087
1981-01-01	0.000871342
1982-01-01	0.000858008
1983-01-01	0.000846510
1984-01-01	0.000788808
1985-01-01	0.000659127
1986-01-01	0.000659321
1987-01-01	0.000749496
1988-01-01	0.000796963
1989-01-01	0.000899436
1990-01-01	0.001347124
1991-01-01	0.001417682
1992-01-01	0.001941230
1993-01-01	0.005126143
1994-01-01	0.029036462
1995-01-01	0.100557528
1996-01-01	0.113106673
1997-01-01	0.110526152
1998-01-01	0.125466904
1999-01-01	0.253373971
2000-01-01	0.400440579
2001-01-01	0.544721463
2002-01-01	0.740891245
2003-01-01	0.880124508
2004-01-01	1.014561493
2005-01-01	1.096090377
2006-01-01	1.226538688
2007-01-01	1.291427620
2008-01-01	1.487636998
2009-01-01	1.521596741
2010-01-01	1.629090319