Year	National currency per current international dollar (Units)
1980	0.587
1981	0.555
1982	0.549
1983	0.567
1984	0.557
1985	0.544
1986	0.535
1987	0.534
1988	0.515
1989	0.489
1990	0.474
1991	0.461
1992	0.473
1993	0.479
1994	0.486
1995	0.478
1996	0.516
1997	0.515
1998	0.514
1999	0.511
2000	0.494
2001	0.488
2002	0.488
2003	0.484
2004	0.481
2005	0.474
2006	0.470
2007	0.471
2008	0.497
2009	0.526
2010	0.533
2011	0.553
2012	0.574
2013	0.571
2014	0.559
2015	0.538
2016	0.515
2017	0.497
2018	0.490
2019	0.483
2020	0.474
2021	0.462
2022	0.442
2023	0.433
2024	0.432
2025	0.433
2026	0.434
2027	0.434
2028	0.435
2029	0.435