Year	National currency per current international dollar (Units)
1980	2.963
1981	2.970
1982	2.999
1983	3.097
1984	3.247
1985	3.412
1986	3.690
1987	3.742
1988	3.807
1989	3.808
1990	3.872
1991	3.935
1992	4.058
1993	4.095
1994	4.003
1995	4.258
1996	4.159
1997	4.137
1998	4.079
1999	4.067
2000	3.960
2001	3.889
2002	3.869
2003	3.821
2004	3.766
2005	3.707
2006	3.645
2007	3.706
2008	3.801
2009	3.783
2010	3.774
2011	3.672
2012	3.750
2013	3.794
2014	4.034
2015	3.996
2016	3.994
2017	4.023
2018	3.970
2019	3.937
2020	3.891
2021	3.809
2022	3.667
2023	3.756
2024	3.763
2025	3.792
2026	3.811
2027	3.813
2028	3.812
2029	3.810