Year	National currency per current international dollar
1980	3.323
1981	2.971
1982	2.801
1983	2.693
1984	2.516
1985	2.529
1986	2.421
1987	2.363
1988	2.282
1989	2.196
1990	2.117
1991	2.775
1992	9.488
1993	19.912
1994	26.714
1995	28.74
1996	32.344
1997	35.371
1998	37.332
1999	37.574
2000	38.829
2001	39.443
2002	40.245
2003	41.565
2004	41.752
2005	41.829
2006	41.607
2007	42.296
2008	43.197
2009	43.907
2010	45.351
2011	45.452
2012	45.061
2013	44.473
2014	44.157
2015	43.936
2016	43.29
2017	43.071
2018	42.996
2019	43.183
2020	43.357
2021	43.702
2022	44.171
2023	44.631
2024	45.081