Year	National currency per current international dollar
1980	1.325
1981	1.312
1982	1.375
1983	1.391
1984	1.394
1985	1.452
1986	1.539
1987	1.635
1988	1.775
1989	1.786
1990	1.75
1991	1.737
1992	1.74
1993	1.73
1994	1.749
1995	1.754
1996	1.774
1997	1.776
1998	1.793
1999	1.794
2000	1.782
2001	1.77
2002	1.755
2003	1.706
2004	1.689
2005	1.711
2006	1.667
2007	1.684
2008	1.724
2009	1.742
2010	1.747
2011	1.731
2012	1.741
2013	1.687
2014	1.691
2015	1.714
2016	1.743
2017	1.709
2018	1.702
2019	1.697
2020	1.696
2021	1.694
2022	1.693
2023	1.692
2024	1.691