Year	National currency per current international dollar
1980	73.565
1981	76.913
1982	101.716
1983	122.108
1984	148.07
1985	219.278
1986	208.667
1987	206.722
1988	207.621
1989	190.206
1990	193.85
1991	194.607
1992	163.033
1993	155.774
1994	189.699
1995	185.803
1996	200.711
1997	172.751
1998	115.93
1999	158.109
2000	133.048
2001	121.218
2002	116.907
2003	152.713
2004	163.855
2005	201.652
2006	224.535
2007	225.302
2008	264.851
2009	208.096
2010	256.931
2011	294.572
2012	303.06
2013	294.64
2014	285.485
2015	225.427
2016	208.974
2017	231.061
2018	255.557
2019	244.53
2020	245.216
2021	247.197
2022	251.86
2023	256.384
2024	257.95