Year	National currency per current international dollar
1980	336.566
1981	321.415
1982	318.212
1983	366.214
1984	385.361
1985	388.598
1986	388.018
1987	428.37
1988	446.888
1989	473
1990	491.15
1991	516.005
1992	536.709
1993	566.493
1994	597.783
1995	643.365
1996	686.615
1997	759.829
1998	1316.94
1999	1482.03
2000	1570.85
2001	1756.88
2002	1831.49
2003	1896.77
2004	2004.98
2005	2223.09
2006	2461.76
2007	2667.26
2008	3068.57
2009	3229.03
2010	3426.11
2011	3606.57
2012	3671.53
2013	3787.41
2014	3919.40
2015	4032.28
2016	4085.96
2017	4181.15
2018	4242.36
2019	4305.98
2020	4367.81
2021	4420.57
2022	4463.57
2023	4503.95
2024	4543.56