Year	National currency per current international dollar
1980	4.997
1981	5.248
1982	5.483
1983	6.259
1984	7.156
1985	6.98
1986	7.252
1987	7.646
1988	8.115
1989	8.666
1990	10.051
1991	10.151
1992	11.703
1993	12.495
1994	13.126
1995	13.98
1996	14.079
1997	14.545
1998	16.721
1999	17.406
2000	17.858
2001	19.944
2002	21.274
2003	21.962
2004	23.269
2005	24.917
2006	26.912
2007	29.885
2008	34.101
2009	35.833
2010	38.005
2011	38.654
2012	42.033
2013	43.885
2014	44.324
2015	44.14
2016	45.444
2017	48.282
2018	49.389
2019	50.71
2020	51.908
2021	53.139
2022	54.405
2023	55.699
2024	57.012