Year National currency per current international dollar (Units) 1980 1.500 1981 1.413 1982 1.336 1983 1.300 1984 1.316 1985 1.404 1986 1.442 1987 1.479 1988 1.602 1989 1.678 1990 1.712 1991 1.761 1992 1.859 1993 2.091 1994 2.464 1995 2.743 1996 2.872 1997 2.869 1998 2.808 1999 2.732 2000 2.728 2001 2.725 2002 2.703 2003 2.723 2004 2.833 2005 2.868 2006 2.889 2007 3.032 2008 3.192 2009 3.168 2010 3.325 2011 3.524 2012 3.561 2013 3.664 2014 3.759 2015 3.871 2016 3.989 2017 4.184 2018 4.233 2019 4.250 2020 4.248 2021 4.182 2022 3.983 2023 3.799 2024 3.759 2025 3.762 2026 3.763 2027 3.767 2028 3.770 2029 3.772