Year National currency per current international dollar 1984 0.002 1985 0.198 1986 0.641 1987 0.713 1988 0.814 1989 0.887 1990 0.994 1991 1.132 1992 1.252 1993 1.304 1994 1.378 1995 1.504 1996 1.648 1997 1.712 1998 1.813 1999 1.83 2000 1.883 2001 1.877 2002 1.9 2003 1.983 2004 2.085 2005 2.142 2006 2.285 2007 2.374 2008 2.594 2009 2.478 2010 2.649 2011 2.946 2012 3.214 2013 3.328 2014 3.39 2015 3.204 2016 3.149 2017 3.311 2018 3.378 2019 3.367 2020 3.418 2021 3.483 2022 3.562 2023 3.646 2024 3.75