An U.S.Dollar exchange rate at Dec.31 2006 was 929.60 Korean Won, Dec.31 2005 was 1,013.00, Dec.31 2004 was 1,043.80
An U.S.Dollar's yearly exchange rate on 2006 was 956.12 Korean Won , 2005 was 1,024.24, 2004 was 1,145.31
Source of information : FINANCIAL SUPERVISORY SERVICE