Year	National currency (Units)
1980	5875.229
1981	6263.566
1982	6444.399
1983	6014.305
1984	6038.320
1985	6196.665
1986	6278.617
1987	6033.653
1988	5116.593
1989	5089.114
1990	5389.671
1991	5772.962
1992	6115.641
1993	6315.703
1994	6362.521
1995	6342.725
1996	6672.052
1997	6960.816
1998	7320.566
1999	7452.659
2000	7504.034
2001	7396.174
2002	7414.016
2003	7578.430
2004	7993.310
2005	8408.099
2006	8959.384
2007	9864.322
2008	10645.865
2009	10592.525
2010	11020.563
2011	12063.188
2012	13020.137
2013	13690.443
2014	14154.206
2015	14731.734
2016	15225.391
2017	15837.033
2018	16181.217
2019	16474.483
2020	13374.481
2021	15282.030
2022	16710.437
2023	17701.897
2024	17916.279
2025	18227.301
2026	18729.063
2027	19244.637
2028	19774.404
2029	20318.755