Quarter	National Currency Units per US Dollar
1960-01-01	4.50000000350000
1960-04-01	4.50000000350000
1960-07-01	4.50000000350000
1960-10-01	4.50000000350000
1961-01-01	4.50000000350000
1961-04-01	4.50000000350000
1961-07-01	4.50000000350000
1961-10-01	4.50000000350000
1962-01-01	4.50000000350000
1962-04-01	4.50000000350000
1962-07-01	4.50000000350000
1962-10-01	4.50000000350000
1963-01-01	4.50000000350000
1963-04-01	4.50000000350000
1963-07-01	4.50000000350000
1963-10-01	4.50000000350000
1964-01-01	4.50000000350000
1964-04-01	4.50000000350000
1964-07-01	4.50000000350000
1964-10-01	4.50000000350000
1965-01-01	4.50000000350000
1965-04-01	4.50000000350000
1965-07-01	4.50000000350000
1965-10-01	4.50000000350000
1966-01-01	4.50000000350000
1966-04-01	4.50000000350000
1966-07-01	4.50000000350000
1966-10-01	4.50000000350000
1967-01-01	4.50000000350000
1967-04-01	4.50000000350000
1967-07-01	4.50000000350000
1967-10-01	4.50000000350000
1968-01-01	4.50000000350000
1968-04-01	4.50000000350000
1968-07-01	4.50000000350000
1968-10-01	4.50000000350000
1969-01-01	4.50000000350000
1969-04-01	4.50000000350000
1969-07-01	4.50000000350000
1969-10-01	4.50000000350000
1970-01-01	4.50000000350000
1970-04-01	4.50000000350000
1970-07-01	4.50000000350000
1970-10-01	4.50000000350000
1971-01-01	4.50000000350000
1971-04-01	4.50000000350000
1971-07-01	4.50000000350000
1971-10-01	4.44731764138581
1972-01-01	4.14475320586966
1972-04-01	4.14475320586966
1972-07-01	4.14475320586966
1972-10-01	4.14475320586966
1973-01-01	3.91513855402632
1973-04-01	3.73026070603909
1973-07-01	3.63095690134636
1973-10-01	3.54999999900000
1974-01-01	3.54999999900000
1974-04-01	3.54999999900000
1974-07-01	3.54999999900000
1974-10-01	3.54999999900000
1975-01-01	3.53690333233333
1975-04-01	3.48499999900000
1975-07-01	3.51854666566667
1975-10-01	3.52999999900000
1976-01-01	3.52999999900000
1976-04-01	3.52999999900000
1976-07-01	3.52999999900000
1976-10-01	3.52999999900000
1977-01-01	3.52999999900000
1977-04-01	3.52999999900000
1977-07-01	3.52666666566667
1977-10-01	3.51359333233333
1978-01-01	3.46157666566667
1978-04-01	3.44533333233333
1978-07-01	3.36961999900000
1978-10-01	3.32171666566667
1979-01-01	3.34457666566667
1979-04-01	3.38141999900000
1979-07-01	3.35651666566667
1979-10-01	3.36083333233333
1980-01-01	3.34942333233333
1980-04-01	3.32499999900000
1980-07-01	3.31572333233333
1980-10-01	3.31681999900000
1981-01-01	3.33359333266667
1981-04-01	3.37052666633333
1981-07-01	3.41091333233333
1981-10-01	3.41499999900000
1982-01-01	3.41788999933333
1982-04-01	3.42479333233333
1982-07-01	3.43499999900000
1982-10-01	3.43499999900000
1983-01-01	3.43521666566667
1983-04-01	3.44499999900000
1983-07-01	3.46231333233333
1983-10-01	3.47650666600000
1984-01-01	3.50575333266667
1984-04-01	3.51222333266667
1984-07-01	3.52119000000000
1984-10-01	3.55607666666667
1985-01-01	3.58356999966667
1985-04-01	3.61497333300000
1985-07-01	3.64500000000000
1985-10-01	3.64500000000000
1986-01-01	3.64500000000000
1986-04-01	3.68000000000000
1986-07-01	3.75000000000000
1986-10-01	3.75000000000000
1987-01-01	3.75000000000000
1987-04-01	3.75000000000000
1987-07-01	3.75000000000000
1987-10-01	3.75000000000000
1988-01-01	3.75000000000000
1988-04-01	3.75000000000000
1988-07-01	3.75000000000000
1988-10-01	3.75000000000000
1989-01-01	3.75000000000000
1989-04-01	3.75000000000000
1989-07-01	3.75000000000000
1989-10-01	3.75000000000000
1990-01-01	3.75000000000000
1990-04-01	3.75000000000000
1990-07-01	3.75000000000000
1990-10-01	3.75000000000000
1991-01-01	3.75000000000000
1991-04-01	3.75000000000000
1991-07-01	3.75000000000000
1991-10-01	3.75000000000000
1992-01-01	3.75000000000000
1992-04-01	3.75000000000000
1992-07-01	3.75000000000000
1992-10-01	3.75000000000000
1993-01-01	3.75000000000000
1993-04-01	3.75000000000000
1993-07-01	3.75000000000000
1993-10-01	3.75000000000000
1994-01-01	3.75000000000000
1994-04-01	3.75000000000000
1994-07-01	3.75000000000000
1994-10-01	3.75000000000000
1995-01-01	3.75000000000000
1995-04-01	3.75000000000000
1995-07-01	3.75000000000000
1995-10-01	3.75000000000000
1996-01-01	3.75000000000000
1996-04-01	3.75000000000000
1996-07-01	3.75000000000000
1996-10-01	3.75000000000000
1997-01-01	3.75000000000000
1997-04-01	3.75000000000000
1997-07-01	3.75000000000000
1997-10-01	3.75000000000000
1998-01-01	3.75000000000000
1998-04-01	3.75000000000000
1998-07-01	3.75000000000000
1998-10-01	3.75000000000000
1999-01-01	3.75000000000000
1999-04-01	3.75000000000000
1999-07-01	3.75000000000000
1999-10-01	3.75000000000000
2000-01-01	3.75000000000000
2000-04-01	3.75000000000000
2000-07-01	3.75000000000000
2000-10-01	3.75000000000000
2001-01-01	3.75000000000000
2001-04-01	3.75000000000000
2001-07-01	3.75000000000000
2001-10-01	3.75000000000000
2002-01-01	3.75000000000000
2002-04-01	3.75000000000000
2002-07-01	3.75000000000000
2002-10-01	3.75000000000000
2003-01-01	3.75000000000000
2003-04-01	3.75000000000000
2003-07-01	3.75000000000000
2003-10-01	3.75000000000000
2004-01-01	3.75000000000000
2004-04-01	3.75000000000000
2004-07-01	3.75000000000000
2004-10-01	3.75000000000000
2005-01-01	3.75000000000000
2005-04-01	3.75000000000000
2005-07-01	3.75000000000000
2005-10-01	3.75000000000000
2006-01-01	3.75000000000000
2006-04-01	3.75000000000000
2006-07-01	3.75000000000000
2006-10-01	3.75000000000000
2007-01-01	3.75000000000000
2007-04-01	3.75000000000000
2007-07-01	3.75000000000000
2007-10-01	3.75000000000000
2008-01-01	3.75000000000000
2008-04-01	3.75000000000000
2008-07-01	3.75000000000000
2008-10-01	3.75000000000000
2009-01-01	3.75000000000000
2009-04-01	3.75000000000000
2009-07-01	3.75000000000000
2009-10-01	3.75000000000000
2010-01-01	3.75000000000000
2010-04-01	3.75000000000000
2010-07-01	3.75000000000000
2010-10-01	3.75000000000000
2011-01-01	3.75000000000000
2011-04-01	3.75000000000000
2011-07-01	3.75000000000000
2011-10-01	3.75000000000000
2012-01-01	3.75000000000000
2012-04-01	3.75000000000000
2012-07-01	3.75000000000000
2012-10-01	3.75000000000000
2013-01-01	3.75000000000000
2013-04-01	3.75000000000000
2013-07-01	3.75000000000000
2013-10-01	3.75000000000000
2014-01-01	3.75000000000000
2014-04-01	3.75000000000000
2014-07-01	3.75000000000000
2014-10-01	3.75000000000000
2015-01-01	3.75000000000000
2015-04-01	3.75000000000000
2015-07-01	3.75000000000000
2015-10-01	3.75000000000000
2016-01-01	3.75000000000000
2016-04-01	3.75000000000000
2016-07-01	3.75000000000000
2016-10-01	3.75000000000000
2017-01-01	3.75000000000000
2017-04-01	3.75000000000000
2017-07-01	3.75000000000000
2017-10-01	3.75000000000000
2018-01-01	3.75000000000000
2018-04-01	3.75000000000000
2018-07-01	3.75000000000000