Year National currency per current international dollar 1980 136.541 1981 128.47 1982 131.023 1983 135.321 1984 152.363 1985 149.506 1986 144.282 1987 135.094 1988 129.226 1989 123.818 1990 113.949 1991 110.953 1992 108.458 1993 112.454 1994 162.206 1995 179.017 1996 183.865 1997 188.365 1998 193.048 1999 191.796 2000 191.816 2001 201.582 2002 211.673 2003 217.791 2004 205.951 2005 202.33 2006 199.811 2007 200.291 2008 213.175 2009 216.525 2010 225.559 2011 228.228 2012 228.081 2013 231.651 2014 236.237 2015 240.998 2016 235.845 2017 227.413 2018 223.323 2019 221.798 2020 221.074 2021 220.071 2022 219.071 2023 217.948 2024 216.945