Year	National currency per current international dollar
1980	157.688
1981	156.78
1982	166.032
1983	180.183
1984	197.486
1985	212.761
1986	208.898
1987	198.991
1988	193.864
1989	183.059
1990	179.465
1991	179.705
1992	173.364
1993	172.685
1994	193.383
1995	207.367
1996	209.296
1997	213.005
1998	218.648
1999	220.435
2000	226.859
2001	225.233
2002	225.809
2003	222.126
2004	220.599
2005	215.538
2006	216.233
2007	212.593
2008	222.327
2009	224.275
2010	225.925
2011	227.212
2012	228.89
2013	229.535
2014	229.996
2015	227.968
2016	227.972
2017	227.035
2018	224.509
2019	222.466
2020	220.681
2021	219.431
2022	218.493
2023	217.664
2024	216.712