Year National currency per current international dollar (Units) 1980 1.733 1981 1.719 1982 1.699 1983 1.670 1984 1.641 1985 1.670 1986 1.786 1987 1.951 1988 1.976 1989 2.021 1990 2.463 1991 2.719 1992 3.000 1993 3.261 1994 3.468 1995 3.917 1996 3.990 1997 4.310 1998 4.126 1999 4.139 2000 4.094 2001 4.110 2002 4.117 2003 4.493 2004 4.811 2005 4.983 2006 5.295 2007 5.708 2008 6.248 2009 6.981 2010 7.124 2011 7.862 2012 8.154 2013 8.246 2014 8.174 2015 8.278 2016 8.129 2017 8.161 2018 8.188 2019 7.937 2020 7.798 2021 7.809 2022 7.409 2023 7.336 2024 7.335 2025 7.424 2026 7.435 2027 7.443 2028 7.451 2029 7.458