Year	National currency per current international dollar (Units)
1980	5.077
1981	5.333
1982	5.572
1983	6.359
1984	7.271
1985	7.092
1986	7.369
1987	7.769
1988	8.245
1989	8.805
1990	10.212
1991	10.314
1992	11.890
1993	12.695
1994	13.336
1995	14.203
1996	14.304
1997	14.777
1998	16.989
1999	17.690
2000	18.143
2001	20.251
2002	21.609
2003	22.281
2004	23.608
2005	25.275
2006	27.283
2007	30.290
2008	34.570
2009	36.378
2010	38.565
2011	39.289
2012	41.447
2013	42.939
2014	44.298
2015	45.183
2016	46.283
2017	49.390
2018	50.358
2019	51.444
2020	52.434
2021	54.395
2022	75.639