Year	National currency per current international dollar
1980	1.674
1981	1.59
1982	1.619
1983	1.548
1984	1.498
1985	1.461
1986	1.454
1987	1.36
1988	1.4
1989	1.346
1990	1.323
1991	1.24
1992	1.26
1993	1.251
1994	1.269
1995	1.318
1996	1.32
1997	1.279
1998	1.284
1999	1.237
2000	1.216
2001	1.187
2002	1.189
2003	1.134
2004	1.127
2005	1.123
2006	1.138
2007	1.162
2008	1.171
2009	1.127
2010	1.127
2011	1.15
2012	1.153
2013	1.156
2014	1.151
2015	1.146
2016	1.169
2017	1.166
2018	1.144
2019	1.137
2020	1.132
2021	1.131
2022	1.13
2023	1.13
2024	1.106