Year	National currency per current international dollar (Units)
1980	4.754
1981	4.544
1982	4.545
1983	4.694
1984	4.904
1985	5.134
1986	5.372
1987	5.428
1988	5.605
1989	5.912
1990	6.064
1991	6.288
1992	6.717
1993	7.133
1994	7.832
1995	8.462
1996	9.000
1997	9.787
1998	10.763
1999	11.534
2000	11.755
2001	11.908
2002	12.323
2003	12.606
2004	12.764
2005	13.055
2006	13.489
2007	13.880
2008	14.305
2009	14.931
2010	15.542
2011	16.397
2012	17.148
2013	18.135
2014	18.677
2015	18.587
2016	18.831
2017	19.208
2018	19.293
2019	19.386
2020	19.903
2021	20.310
2022	20.239
2023	20.406
2024	20.862
2025	21.452
2026	21.974
2027	22.469
2028	22.950
2029	23.424