Year	National currency per current international dollar
1980	5.18
1981	5.342
1982	5.56
1983	5.723
1984	5.867
1985	5.982
1986	5.832
1987	6.102
1988	6.181
1989	6.282
1990	6.286
1991	6.215
1992	6.038
1993	6.033
1994	5.898
1995	5.954
1996	6.096
1997	6.159
1998	6.049
1999	6.36
2000	7.181
2001	7.142
2002	6.912
2003	6.98
2004	7.194
2005	7.587
2006	8.011
2007	8.039
2008	8.709
2009	8.193
2010	8.581
2011	8.973
2012	9.099
2013	9.17
2014	9.029
2015	8.682
2016	8.49
2017	8.655
2018	8.935
2019	8.913
2020	8.883
2021	8.869
2022	8.865
2023	8.863
2024	8.858