Year National currency per current international dollar 1980 0.91 1981 0.993 1982 1.109 1983 1.144 1984 1.299 1985 2.134 1986 4.087 1987 23.416 1988 57.675 1989 95.587 1990 155.534 1991 227.985 1992 490.39 1993 618.441 1994 653.771 1995 708.268 1996 757.157 1997 801.926 1998 825.359 1999 821.174 2000 787.124 2001 756.231 2002 781.212 2003 780.117 2004 767.36 2005 736.073 2006 720.762 2007 724.186 2008 764.053 2009 836.326 2010 828.654 2011 838.986 2012 884.486 2013 897.529 2014 890.942 2015 908.368 2016 906.737 2017 922.15 2018 950.375 2019 952.367 2020 951.776 2021 951.284 2022 950.817 2023 949.837 2024 949.173