Year National currency per current international dollar 1980 55.278 1981 55.944 1982 57.629 1983 56.772 1984 54.267 1985 55.016 1986 50.118 1987 49.514 1988 48.962 1989 54.58 1990 51.74 1991 58.447 1992 60.888 1993 68.942 1994 72.018 1995 109.406 1996 122.013 1997 138.559 1998 140.146 1999 134.028 2000 134.746 2001 133.382 2002 124.613 2003 149.135 2004 164.141 2005 173.768 2006 186.481 2007 202.995 2008 227.598 2009 244.478 2010 248.016 2011 260.751 2012 271.14 2013 279.196 2014 282.35 2015 280.16 2016 292.381 2017 307.931 2018 298.85 2019 305.991 2020 314.719 2021 323.816 2022 333.208 2023 342.862 2024 352.725