Year	National currency (Units)
1980	2956.536
1981	2739.183
1982	2577.489
1983	2422.730
1984	2368.428
1985	2281.106
1986	2176.950
1987	2184.968
1988	2202.562
1989	2239.297
1990	2295.195
1991	2366.668
1992	2356.445
1993	2388.776
1994	2430.794
1995	2494.794
1996	2552.750
1997	2626.996
1998	2705.697
1999	2665.294
2000	2651.989
2001	2646.414
2002	2662.598
2003	2685.681
2004	2748.408
2005	2820.178
2006	2905.103
2007	2986.809
2008	3118.211
2009	3170.644
2010	3248.822
2011	3364.227
2012	3481.880
2013	3661.900
2014	3803.951
2015	3929.787
2016	4037.698
2017	4146.717
2018	4260.719
2019	4294.414
2020	3865.255
2021	4042.386
2022	4132.113
2023	4176.057
2024	4187.638
2025	4224.765
2026	4254.371
2027	4288.377
2028	4322.654
2029	4357.206