Year	National currency per current international dollar
1980	0.792
1981	0.818
1982	0.871
1983	0.896
1984	0.959
1985	1.017
1986	1.048
1987	1.141
1988	1.287
1989	1.281
1990	1.656
1991	1.718
1992	1.901
1993	2.173
1994	2.576
1995	2.758
1996	3.073
1997	3.327
1998	3.598
1999	3.789
2000	3.866
2001	4.255
2002	4.691
2003	4.67
2004	4.852
2005	4.957
2006	5.129
2007	5.171
2008	5.651
2009	6.016
2010	6.351
2011	7.131
2012	7.347
2013	7.389
2014	7.433
2015	7.581
2016	7.771
2017	7.834
2018	7.985
2019	8.113
2020	8.225
2021	8.388
2022	8.541
2023	8.75
2024	8.915