Year National currency per current international dollar (Units) 1980 141.887 1981 133.499 1982 136.151 1983 140.619 1984 158.326 1985 155.358 1986 149.930 1987 140.376 1988 134.278 1989 128.659 1990 118.403 1991 115.290 1992 112.698 1993 116.849 1994 168.544 1995 186.014 1996 191.051 1997 195.727 1998 200.596 1999 199.352 2000 199.315 2001 209.343 2002 219.884 2003 225.979 2004 213.701 2005 209.899 2006 207.171 2007 207.623 2008 221.018 2009 224.816 2010 234.081 2011 236.911 2012 241.715 2013 247.242 2014 246.519 2015 250.638 2016 252.411 2017 253.746 2018 252.239 2019 252.995 2020 254.260 2021 252.670 2022 245.387 2023 241.139 2024 240.968 2025 241.526 2026 241.800 2027 242.065 2028 242.325 2029 242.537