Year National currency per current international dollar (Units) 1980 3.420 1981 3.354 1982 3.213 1983 3.190 1984 3.176 1985 3.149 1986 3.264 1987 3.302 1988 3.315 1989 3.257 1990 3.340 1991 3.165 1992 3.239 1993 3.259 1994 3.276 1995 3.142 1996 2.898 1997 2.874 1998 3.138 1999 3.158 2000 3.126 2001 3.246 2002 3.312 2003 3.441 2004 4.177 2005 4.069 2006 4.004 2007 4.359 2008 5.769 2009 7.309 2010 6.893 2011 6.884 2012 7.625 2013 7.959 2014 7.844 2015 8.157 2016 7.815 2017 7.969 2018 8.059 2019 7.936 2020 8.243 2021 8.098 2022 7.680 2023 7.345 2024 7.158 2025 7.181 2026 7.221 2027 7.297 2028 7.386 2029 7.475