Year	National currency (Units)
1980	9509.043
1981	9782.329
1982	9516.600
1983	8426.009
1984	8544.699
1985	8525.745
1986	9343.869
1987	9843.976
1988	8723.242
1989	7393.793
1990	6876.044
1991	6888.523
1992	6718.592
1993	6937.174
1994	7646.980
1995	8065.668
1996	8141.683
1997	8511.752
1998	8330.012
1999	8317.714
2000	8420.159
2001	8369.044
2002	8732.657
2003	9010.897
2004	9376.219
2005	9882.801
2006	10545.839
2007	11368.075
2008	12326.714
2009	12380.902
2010	13315.547
2011	14053.415
2012	14810.531
2013	15555.434
2014	15778.329
2015	16102.189
2016	16486.343
2017	16601.504
2018	16938.946
2019	17011.764
2020	14932.630
2021	16726.532
2022	16989.280
2023	16728.247
2024	16982.993
2025	17265.482
2026	17487.859
2027	17712.991
2028	17941.034
2029	18171.973