Year LCU per US$ 1965 0.4762 1966 0.47619 1967 0.47619 1968 0.47619 1969 0.47619 1970 0.47619 1971 0.474796 1972 0.438598 1973 0.39963 1974 0.39474 1975 0.3955 1976 0.395599 1977 0.3957 1978 0.387453 1979 0.3815 1980 0.3769 1981 0.376 1982 0.376 1983 0.376 1984 0.376 1985 0.376 1986 0.376 1987 0.376 1988 0.376 1989 0.376 1990 0.376 1991 0.376 1992 0.376 1993 0.376 1994 0.376 1995 0.376 1996 0.376 1997 0.376 1998 0.376 1999 0.376 2000 0.376 2001 0.376 2002 0.376 2003 0.376 2004 0.376 2005 0.376 2006 0.376 2007 0.376 2008 0.376 2009 0.376 2010 0.376 2011 0.376 2012 0.376 2013 0.376 2014 0.376 2015 0.376 2016 0.376 2017 0.376 2018 0.376 2019 0.376 2020 0.376 2021 0.376 2022 0.376 2023 0.376