Year	National currency per current international dollar (Units)
1980	167.460
1981	175.413
1982	188.841
1983	204.240
1984	196.866
1985	250.765
1986	233.029
1987	213.375
1988	212.653
1989	208.937
1990	199.731
1991	190.507
1992	186.852
1993	179.062
1994	201.397
1995	226.095
1996	218.267
1997	225.810
1998	231.492
1999	233.661
2000	228.567
2001	233.134
2002	233.638
2003	236.339
2004	230.808
2005	234.146
2006	233.923
2007	229.040
2008	237.052
2009	244.715
2010	251.958
2011	256.761
2012	262.129
2013	254.347
2014	290.945
2015	283.524
2016	280.048
2017	286.829
2018	284.077
2019	286.170
2020	287.703
2021	284.233
2022	282.406
2023	281.868
2024	291.636
2025	299.372
2026	305.035
2027	308.830
2028	311.940
2029	315.094