Year National currency per current international dollar 1980 1.05 1981 1.011 1982 1.003 1983 0.986 1984 0.965 1985 0.952 1986 0.934 1987 0.909 1988 0.876 1989 0.854 1990 0.836 1991 0.834 1992 0.836 1993 0.829 1994 0.829 1995 0.827 1996 0.821 1997 0.828 1998 0.836 1999 0.835 2000 0.844 2001 0.861 2002 0.879 2003 0.882 2004 0.869 2005 0.86 2006 0.856 2007 0.851 2008 0.854 2009 0.849 2010 0.847 2011 0.832 2012 0.828 2013 0.824 2014 0.811 2015 0.808 2016 0.803 2017 0.797 2018 0.797 2019 0.796 2020 0.792 2021 0.79 2022 0.789 2023 0.788 2024 0.788