Year	National currency (Units)
1980	925.718
1981	887.170
1982	902.250
1983	996.462
1984	965.410
1985	975.927
1986	1009.875
1987	1053.253
1988	1357.082
1989	1249.580
1990	1208.917
1991	1374.367
1992	1491.930
1993	1676.314
1994	1855.793
1995	2024.237
1996	2162.984
1997	2196.416
1998	2360.504
1999	2604.790
2000	2803.069
2001	2921.408
2002	3173.440
2003	3546.616
2004	3583.281
2005	3938.006
2006	4315.808
2007	4673.857
2008	5085.691
2009	5050.425
2010	5798.038
2011	6050.817
2012	5971.284
2013	6285.029
2014	7366.214
2015	7593.493
2016	8044.323
2017	8786.667
2018	9424.072
2019	9747.628
2020	9397.181
2021	7777.047
2022	9249.086
2023	9088.300
2024	9666.094
2025	10235.888
2026	10773.998
2027	11241.583
2028	11715.660
2029	12241.912
