Year	National Currency Units per US Dollar
1960-01-01	0.719499296665011
1961-01-01	0.720840874996005
1962-01-01	0.719665112496690
1963-01-01	0.721453493331561
1964-01-01	0.723391783331711
1965-01-01	0.722271201663413
1966-01-01	0.722794682497503
1967-01-01	0.742537134996686
1968-01-01	0.897953358325898
1969-01-01	0.899175214159034
1970-01-01	0.897057947494128
1971-01-01	0.877728414994332
1972-01-01	0.836820079990503
1973-01-01	0.731995897766863
1974-01-01	0.708181972989598
1975-01-01	0.825906826871954
1976-01-01	0.998499613942124
1977-01-01	1.025272733049200
1978-01-01	0.960852449868264
1979-01-01	0.978323211745497
1980-01-01	1.027150776128520
1981-01-01	1.153398981721230
1982-01-01	1.332494232263030
1983-01-01	1.496274884196090
1984-01-01	1.767014785093500
1985-01-01	2.025589538331910
1986-01-01	1.912822522229140
1987-01-01	1.695129271033210
1988-01-01	1.529175452854170
1989-01-01	1.674062866316290
1990-01-01	1.677936309734820
1991-01-01	1.729239566173360
1992-01-01	1.860040949483530
1993-01-01	1.850685747927100
1994-01-01	1.687096202956880
1995-01-01	1.523954563648870
1996-01-01	1.453638247098460
1997-01-01	1.512544335790070
1998-01-01	1.868525087756450
1999-01-01	1.891731273287800
2000-01-01	2.204688094061740
2001-01-01	2.381709473330620
2002-01-01	2.163321282574850
2003-01-01	1.723514404326340
2004-01-01	1.509013559429700
2005-01-01	1.420823063711650
2006-01-01	1.541638076416340
2007-01-01	1.360973051948050
2008-01-01	1.425474881136940
2009-01-01	1.600009913827790
2010-01-01	1.387568821914800
2011-01-01	1.266446217375620
2012-01-01	1.234898367604620
2013-01-01	1.220388437731350
2014-01-01	1.205831530789260
2015-01-01	1.434245008336470
2016-01-01	1.436525762830160
2017-01-01	1.407401417662650