Year	National currency per current international dollar (Units)
1980	158.558
1981	154.563
1982	160.586
1983	168.703
1984	172.763
1985	170.083
1986	169.366
1987	170.534
1988	167.023
1989	169.733
1990	158.960
1991	169.387
1992	157.728
1993	157.551
1994	173.855
1995	180.830
1996	182.793
1997	181.521
1998	181.947
1999	186.332
2000	193.803
2001	203.563
2002	208.108
2003	214.141
2004	209.444
2005	202.245
2006	207.872
2007	212.579
2008	215.119
2009	215.909
2010	216.890
2011	218.978
2012	213.964
2013	211.500
2014	206.343
2015	203.344
2016	197.571
2017	190.126
2018	187.645
2019	192.837
2020	191.757
2021	181.210
2022	178.248
2023	176.978
2024	176.299
2025	176.883
2026	177.230
2027	177.353
2028	177.415
2029	177.501