Year	National currency per current international dollar (Units)
1980	0.510
1981	0.523
1982	0.532
1983	0.541
1984	0.549
1985	0.561
1986	0.575
1987	0.592
1988	0.607
1989	0.630
1990	0.660
1991	0.681
1992	0.688
1993	0.692
1994	0.690
1995	0.693
1996	0.709
1997	0.696
1998	0.697
1999	0.697
2000	0.689
2001	0.684
2002	0.688
2003	0.691
2004	0.690
2005	0.689
2006	0.687
2007	0.684
2008	0.694
2009	0.703
2010	0.705
2011	0.706
2012	0.702
2013	0.695
2014	0.698
2015	0.692
2016	0.689
2017	0.682
2018	0.680
2019	0.683
2020	0.708
2021	0.676
2022	0.664
2023	0.687
2024	0.682
2025	0.684
2026	0.686
2027	0.687
2028	0.688
2029	0.690