Year	National currency per current international dollar (Units)
1980	2.012
1981	1.971
1982	2.082
1983	2.130
1984	2.180
1985	2.139
1986	2.070
1987	2.118
1988	2.131
1989	2.198
1990	2.447
1991	2.404
1992	2.188
1993	2.280
1994	2.579
1995	2.632
1996	2.632
1997	2.496
1998	2.422
1999	2.491
2000	2.730
2001	2.752
2002	2.588
2003	2.813
2004	3.002
2005	3.299
2006	3.231
2007	3.567
2008	4.328
2009	3.147
2010	3.495
2011	3.950
2012	4.097
2013	4.317
2014	4.375
2015	4.240
2016	4.107
2017	4.162
2018	4.179
2019	3.953
2020	3.753
2021	4.274
2022	4.824
2023	4.266
2024	4.102
2025	4.098
2026	4.061
2027	4.001
2028	3.941
2029	3.882