Year	National currency (Units)
1980	3707.040
1981	3804.565
1982	3696.219
1983	3779.128
1984	3949.835
1985	4040.403
1986	3832.637
1987	4003.832
1988	3939.645
1989	3969.740
1990	4123.184
1991	4199.507
1992	4438.011
1993	4453.897
1994	4526.985
1995	4567.662
1996	4805.850
1997	5011.627
1998	5196.536
1999	5449.358
2000	5627.744
2001	5789.752
2002	5819.566
2003	6047.033
2004	6374.143
2005	6540.957
2006	6820.741
2007	7206.324
2008	7432.859
2009	7575.729
2010	7754.686
2011	7510.190
2012	7736.858
2013	7832.843
2014	7981.176
2015	7965.663
2016	7963.140
2017	8050.357
2018	8171.640
2019	8214.051
2020	7432.635
2021	7700.283
2022	7828.705
2023	7794.041
2024	7875.494
2025	7956.240
2026	8030.475
2027	8090.310
2028	8142.904
2029	8192.559