Year National currency per current international dollar 1980 0.09 1981 0.061 1982 0.068 1983 0.074 1984 0.084 1985 0.108 1986 0.12 1987 0.329 1988 0.471 1989 0.668 1990 1.202 1991 1.308 1992 1.672 1993 2.427 1994 3.595 1995 5.283 1996 7.034 1997 7.559 1998 7.873 1999 8.441 2000 9.068 2001 10.168 2002 11.458 2003 11.834 2004 12.344 2005 12.655 2006 13.244 2007 14.008 2008 14.837 2009 14.884 2010 15.837 2011 16.03 2012 16.649 2013 17.003 2014 17.126 2015 17.688 2016 19.582 2017 21.688 2018 22.419 2019 23.239 2020 24.016 2021 24.821 2022 25.655 2023 26.517 2024 27.401