Year	National currency per current international dollar (Units)
1980	4.039
1981	3.982
1982	3.937
1983	4.557
1984	4.742
1985	5.185
1986	5.814
1987	6.394
1988	6.906
1989	7.394
1990	7.891
1991	8.590
1992	9.951
1993	10.769
1994	11.051
1995	11.506
1996	12.182
1997	12.821
1998	13.209
1999	14.173
2000	14.490
2001	14.540
2002	14.880
2003	15.040
2004	15.257
2005	15.698
2006	16.349
2007	17.128
2008	17.749
2009	20.447
2010	23.261
2011	25.255
2012	26.004
2013	26.800
2014	28.153
2015	29.943
2016	31.999
2017	31.235
2018	31.866
2019	32.810
2020	33.424
2021	34.120
2022	34.211
2023	35.588
2024	36.943
2025	38.340
2026	39.682
2027	41.050
2028	42.464
2029	43.918