Year	National currency (Units)
1980	2549.093
1981	2376.217
1982	2209.034
1983	2229.662
1984	2245.573
1985	2241.502
1986	2223.091
1987	2251.683
1988	2262.163
1989	2248.359
1990	2316.732
1991	2319.701
1992	2448.588
1993	2554.756
1994	2645.498
1995	2744.099
1996	2743.166
1997	2807.168
1998	2860.799
1999	2903.562
2000	2919.216
2001	2930.255
2002	2964.988
2003	3003.659
2004	3025.903
2005	3106.797
2006	3244.274
2007	3298.877
2008	3354.709
2009	3273.368
2010	3329.524
2011	3442.970
2012	3526.736
2013	3591.409
2014	3638.533
2015	3712.942
2016	3794.495
2017	3870.311
2018	3958.888
2019	4052.664
2020	3725.067
2021	4154.289
2022	4255.620
2023	4389.054
2024	4504.887
2025	4592.353
2026	4681.517
2027	4772.413
2028	4865.073
2029	4959.533