Year	National currency per current international dollar
1980	160.571
1981	162.826
1982	168.329
1983	177.008
1984	184.154
1985	194.559
1986	201.662
1987	193.665
1988	184.444
1989	180.178
1990	173.647
1991	166.75
1992	161.519
1993	157.576
1994	206.57
1995	217.235
1996	222.537
1997	223.251
1998	226.85
1999	224.412
2000	224.67
2001	224.675
2002	228.474
2003	225.459
2004	220.712
2005	219.36
2006	221.416
2007	227.09
2008	237.318
2009	233.187
2010	232.979
2011	236.287
2012	237.912
2013	234.057
2014	224.845
2015	224.846
2016	224.178
2017	223.918
2018	224.119
2019	224.216
2020	224.036
2021	222.244
2022	222.155
2023	219.99
2024	219.444