Year	National currency per current international dollar
1980	6.66
1981	6.36
1982	6.468
1983	6.843
1984	7.116
1985	7.34
1986	7.642
1987	7.815
1988	8.055
1989	8.37
1990	8.828
1991	9.252
1992	9.149
1993	9.155
1994	9.193
1995	9.347
1996	9.275
1997	9.261
1998	9.23
1999	9.185
2000	9.124
2001	9.153
2002	9.154
2003	9.145
2004	8.943
2005	8.743
2006	8.64
2007	8.656
2008	8.773
2009	8.914
2010	8.899
2011	8.82
2012	8.746
2013	8.686
2014	8.676
2015	8.761
2016	8.809
2017	8.84
2018	8.838
2019	8.875
2020	8.871
2021	8.855
2022	8.849
2023	8.843
2024	8.835