Year	National currency per current international dollar
1980	1.597
1981	1.767
1982	1.51
1983	1.486
1984	1.583
1985	1.874
1986	2.49
1987	3.237
1988	3.384
1989	3.707
1990	4.119
1991	4.561
1992	4.814
1993	4.971
1994	5.244
1995	5.176
1996	5.292
1997	5.533
1998	5.505
1999	5.605
2000	5.681
2001	6.403
2002	7.318
2003	9.152
2004	10
2005	10.018
2006	9.385
2007	9.309
2008	9.756
2009	10.072
2010	10.768
2011	9.939
2012	10.232
2013	10.333
2014	10.943
2015	11.534
2016	12.137
2017	12.494
2018	12.918
2019	13.428
2020	13.869
2021	14.24
2022	14.567
2023	14.9
2024	15.239