Year National currency per current international dollar (Units) 1980 240.158 1981 225.670 1982 216.276 1983 210.042 1984 205.624 1985 201.833 1986 201.040 1987 195.857 1988 190.339 1989 186.946 1990 184.823 1991 183.969 1992 182.887 1993 179.596 1994 176.170 1995 171.649 1996 167.811 1997 165.799 1998 163.912 1999 159.620 2000 153.998 2001 148.973 2002 144.653 2003 139.572 2004 134.389 2005 128.747 2006 123.818 2007 119.702 2008 116.369 2009 114.997 2010 111.480 2011 107.454 2012 104.274 2013 101.303 2014 103.052 2015 103.450 2016 105.503 2017 105.379 2018 103.019 2019 101.961 2020 101.580 2021 96.942 2022 90.866 2023 90.960 2024 90.821 2025 91.340 2026 91.574 2027 91.675 2028 91.774 2029 91.813