Year	National currency per current international dollar
1980	1.344
1981	1.377
1982	1.425
1983	1.449
1984	1.471
1985	1.476
1986	1.512
1987	1.583
1988	1.572
1989	1.616
1990	1.615
1991	1.633
1992	1.63
1993	1.675
1994	1.676
1995	1.658
1996	1.67
1997	1.657
1998	1.781
1999	1.834
2000	1.77
2001	1.771
2002	1.759
2003	1.746
2004	1.8
2005	1.862
2006	1.888
2007	2.001
2008	1.991
2009	1.938
2010	1.987
2011	2.017
2012	1.96
2013	1.981
2014	1.956
2015	1.905
2016	1.887
2017	1.912
2018	1.938
2019	1.929
2020	1.926
2021	1.931
2022	1.936
2023	1.941
2024	1.946