Year	National currency per current international dollar
1980	23.744
1981	27.311
1982	25.621
1983	24.771
1984	27.635
1985	26.186
1986	33.045
1987	46.68
1988	60.115
1989	80.614
1990	110.528
1991	134.009
1992	182.854
1993	313.28
1994	534.293
1995	785.315
1996	1536.50
1997	2101.25
1998	2410.31
1999	2563.82
2000	2757.94
2001	2725.80
2002	3003.67
2003	3404.74
2004	3699.20
2005	4277.86
2006	4779.97
2007	5317.48
2008	6804.84
2009	7264.60
2010	8076.98
2011	8527.16
2012	9505.30
2013	10342.86
2014	10983.76
2015	11322.74
2016	12102.05
2017	12437.18
2018	12880.56
2019	13343.41
2020	13656.75
2021	13837.97
2022	13974.80
2023	14045.79
2024	14135.61