Year	National currency (Units)
1980	2634.265
1981	2974.098
1982	3398.638
1983	3861.423
1984	4309.920
1985	4786.713
1986	5442.755
1987	6061.045
1988	6709.338
1989	7509.709
1990	8357.506
1991	9149.077
1992	9819.229
1993	10202.463
1994	10787.219
1995	11587.174
1996	12249.333
1997	12992.242
1998	13860.801
1999	14823.468
2000	15974.869
2001	17195.510
2002	18094.841
2003	19012.741
2004	20052.581
2005	21239.155
2006	22628.747
2007	23776.172
2008	24129.285
2009	23061.883
2010	23038.054
2011	22760.980
2012	22047.965
2013	21906.120
2014	22228.076
2015	23229.660
2016	23991.884
2017	24982.169
2018	25762.670
2019	26441.005
2020	23629.898
2021	25824.136
2022	28276.300
2023	30576.872
2024	31570.780
2025	32672.483
2026	33437.056
2027	34228.627
2028	35091.366
2029	36012.788