Year	National currency per current international dollar
1980	0.746
1981	0.717
1982	0.752
1983	0.857
1984	1.066
1985	1.271
1986	1.347
1987	1.377
1988	1.651
1989	1.823
1990	2.674
1991	3.961
1992	7.234
1993	9.558
1994	12.21
1995	14.727
1996	17.147
1997	18.57
1998	20.074
1999	21.171
2000	22.924
2001	24.199
2002	26.327
2003	28.852
2004	31.708
2005	34.277
2006	36.214
2007	39.254
2008	43.724
2009	47.977
2010	52.066
2011	54.122
2012	56.53
2013	60.41
2014	63.471
2015	67.022
2016	69.313
2017	72.807
2018	73.952
2019	75.319
2020	77.177
2021	79.372
2022	81.651
2023	83.993
2024	86.385