Year	National currency (Units)
1980	6817.863
1981	6955.327
1982	7031.748
1983	7202.295
1984	7527.267
1985	7684.930
1986	8055.300
1987	8694.361
1988	8716.264
1989	8583.517
1990	9216.307
1991	9145.811
1992	9534.771
1993	10136.701
1994	9433.138
1995	9955.878
1996	10492.823
1997	11115.787
1998	11297.721
1999	10773.825
2000	11358.570
2001	10562.884
2002	11108.705
2003	11611.581
2004	12594.772
2005	13557.822
2006	14319.027
2007	14858.796
2008	14784.892
2009	13869.330
2010	14801.087
2011	16238.343
2012	16812.742
2013	17991.785
2014	18630.719
2015	19502.003
2016	19878.930
2017	21106.857
2018	21426.526
2019	21302.900
2020	21579.989
2021	23745.872
2022	24883.521
2023	25709.720
2024	26212.501
2025	26755.620
2026	27344.416
2027	27999.714
2028	28683.035
2029	29401.598