Year	National currency per current international dollar (Units)
1980	0.630
1981	0.567
1982	0.527
1983	0.458
1984	0.452
1985	0.491
1986	0.342
1987	0.332
1988	0.276
1989	0.260
1990	0.247
1991	0.255
1992	0.263
1993	0.294
1994	0.333
1995	0.347
1996	0.350
1997	0.371
1998	0.361
1999	0.269
2000	0.241
2001	0.299
2002	0.328
2003	0.358
2004	0.371
2005	0.390
2006	0.411
2007	0.429
2008	0.484
2009	0.468
2010	0.504
2011	0.528
2012	0.551
2013	0.543
2014	0.544
2015	0.554
2016	0.549
2017	0.535
2018	0.532
2019	0.523
2020	0.507
2021	0.495
2022	0.472
2023	0.459
2024	0.453
2025	0.452
2026	0.450
2027	0.448
2028	0.446
2029	0.444