Year National currency per current international dollar (Units) 1980 1.624 1981 1.611 1982 1.401 1983 1.394 1984 1.589 1985 1.548 1986 1.585 1987 1.644 1988 1.595 1989 1.596 1990 1.666 1991 1.700 1992 1.691 1993 1.669 1994 1.676 1995 1.725 1996 1.702 1997 1.721 1998 1.743 1999 1.759 2000 1.739 2001 1.685 2002 1.666 2003 1.720 2004 1.687 2005 1.748 2006 1.779 2007 1.783 2008 1.788 2009 1.777 2010 1.826 2011 1.830 2012 1.876 2013 1.877 2014 1.931 2015 2.011 2016 1.958 2017 1.996 2018 1.956 2019 1.966 2020 1.839 2021 1.919 2022 1.924 2023 1.934 2024 1.931 2025 1.944 2026 1.956 2027 1.967 2028 1.979 2029 1.991