Year	National currency per current international dollar
1980	0.488
1981	0.43
1982	0.447
1983	0.463
1984	0.547
1985	0.653
1986	0.686
1987	0.783
1988	0.954
1989	0.974
1990	0.931
1991	0.958
1992	1.03
1993	1.114
1994	1.247
1995	1.309
1996	1.493
1997	1.545
1998	1.675
1999	1.887
2000	2.107
2001	2.233
2002	2.224
2003	2.255
2004	2.417
2005	2.707
2006	2.824
2007	2.885
2008	2.964
2009	3.132
2010	3.372
2011	3.764
2012	3.7
2013	3.721
2014	4.086
2015	4.118
2016	4.561
2017	4.592
2018	4.62
2019	4.73
2020	4.82
2021	4.938
2022	5.06
2023	5.218
2024	5.319