Year	National currency per current international dollar
1980	2.112
1981	2.095
1982	2.07
1983	2.036
1984	2
1985	2.035
1986	2.176
1987	2.378
1988	2.409
1989	2.463
1990	3.002
1991	3.314
1992	3.656
1993	3.975
1994	4.227
1995	4.774
1996	4.863
1997	5.359
1998	5.13
1999	5.145
2000	5.089
2001	5.012
2002	5.019
2003	4.992
2004	5.351
2005	5.682
2006	5.936
2007	6.341
2008	6.906
2009	7.578
2010	7.719
2011	8.527
2012	8.945
2013	9.356
2014	9.608
2015	10.26
2016	10.162
2017	10.295
2018	10.269
2019	10.291
2020	10.323
2021	10.365
2022	10.413
2023	10.441
2024	10.433