Year	National currency per current international dollar
1980	1.491
1981	1.404
1982	1.328
1983	1.292
1984	1.308
1985	1.396
1986	1.434
1987	1.471
1988	1.592
1989	1.664
1990	1.696
1991	1.743
1992	1.842
1993	2.075
1994	2.443
1995	2.717
1996	2.844
1997	2.842
1998	2.785
1999	2.711
2000	2.709
2001	2.707
2002	2.685
2003	2.71
2004	2.821
2005	2.857
2006	2.877
2007	3.014
2008	3.176
2009	3.157
2010	3.311
2011	3.506
2012	3.548
2013	3.569
2014	3.539
2015	3.539
2016	3.498
2017	3.516
2018	3.51
2019	3.513
2020	3.517
2021	3.517
2022	3.52
2023	3.529
2024	3.535