Year National currency per current international dollar (Units) 1980 0.812 1981 0.840 1982 0.880 1983 0.923 1984 0.959 1985 1.074 1986 1.197 1987 1.360 1988 1.451 1989 1.474 1990 1.482 1991 1.424 1992 1.420 1993 1.414 1994 1.410 1995 1.401 1996 1.401 1997 1.389 1998 1.395 1999 1.383 2000 1.381 2001 1.405 2002 1.399 2003 1.391 2004 1.397 2005 1.379 2006 1.367 2007 1.394 2008 1.420 2009 1.445 2010 1.474 2011 1.486 2012 1.496 2013 1.446 2014 1.441 2015 1.475 2016 1.441 2017 1.453 2018 1.450 2019 1.462 2020 1.480 2021 1.462 2022 1.440 2023 1.469 2024 1.477 2025 1.489 2026 1.497 2027 1.499 2028 1.499 2029 1.502