Year	National currency per current international dollar (Units)
1980	0.524
1981	0.509
1982	0.483
1983	0.464
1984	0.448
1985	0.436
1986	0.449
1987	0.454
1988	0.447
1989	0.443
1990	0.446
1991	0.451
1992	0.447
1993	0.450
1994	0.461
1995	0.466
1996	0.458
1997	0.465
1998	0.474
1999	0.483
2000	0.553
2001	0.565
2002	0.571
2003	0.571
2004	0.568
2005	0.561
2006	0.556
2007	0.554
2008	0.561
2009	0.569
2010	0.579
2011	0.574
2012	0.580
2013	0.577
2014	0.586
2015	0.600
2016	0.583
2017	0.578
2018	0.575
2019	0.578
2020	0.580
2021	0.566
2022	0.557
2023	0.565
2024	0.572
2025	0.573
2026	0.574
2027	0.575
2028	0.575
2029	0.575