Year	National currency per current international dollar
1980	65.148
1981	64.658
1982	78.96
1983	98.262
1984	118.784
1985	137.019
1986	227.88
1987	283.001
1988	332.553
1989	391.418
1990	442.491
1991	539.137
1992	665.327
1993	654.28
1994	649.559
1995	673.616
1996	663.347
1997	663.115
1998	685.732
1999	700.534
2000	708.529
2001	703.816
2002	705.274
2003	812.857
2004	920.827
2005	1266.08
2006	1586.29
2007	1760.13
2008	2014.81
2009	2043.59
2010	2361.53
2011	2518.39
2012	2665.00
2013	2825.60
2014	2849.51
2015	2899.27
2016	3072.45
2017	3330.04
2018	3572.45
2019	3817.33
2020	4042.88
2021	4278.90
2022	4523.45
2023	4776.63
2024	5042.89