Year National currency per current international dollar (Units) 1980 1.558 1981 1.465 1982 1.437 1983 1.407 1984 1.442 1985 1.520 1986 1.552 1987 1.592 1988 1.642 1989 1.723 1990 1.657 1991 1.709 1992 1.737 1993 1.729 1994 1.744 1995 1.760 1996 1.775 1997 1.778 1998 1.788 1999 1.781 2000 1.789 2001 1.787 2002 1.766 2003 1.730 2004 1.719 2005 1.708 2006 1.734 2007 1.728 2008 1.828 2009 1.817 2010 1.803 2011 1.771 2012 1.800 2013 1.769 2014 1.733 2015 1.736 2016 1.730 2017 1.690 2018 1.641 2019 1.667 2020 1.641 2021 1.613 2022 1.540 2023 1.528 2024 1.518 2025 1.522 2026 1.527 2027 1.532 2028 1.537 2029 1.541