Year National currency per current international dollar (Units) 1980 0.565 1981 0.568 1982 0.525 1983 0.558 1984 0.597 1985 0.685 1986 0.770 1987 0.859 1988 0.983 1989 1.077 1990 1.179 1991 1.323 1992 1.463 1993 1.580 1994 1.688 1995 1.831 1996 1.927 1997 2.066 1998 2.234 1999 2.370 2000 2.492 2001 2.721 2002 2.952 2003 3.006 2004 3.182 2005 3.307 2006 3.366 2007 3.258 2008 3.596 2009 3.687 2010 3.877 2011 4.081 2012 4.373 2013 4.393 2014 4.623 2015 4.752 2016 5.012 2017 5.506 2018 5.899 2019 6.045 2020 6.279 2021 6.214 2022 6.265 2023 6.385 2024 6.571 2025 6.780 2026 6.993 2027 7.197 2028 7.402 2029 7.616