Year	National currency (Units)
1980	658.146
1981	707.126
1982	760.102
1983	817.635
1984	880.384
1985	905.154
1986	921.983
1987	1083.301
1988	1246.042
1989	1307.279
1990	1742.331
1991	1925.661
1992	2387.123
1993	2823.848
1994	3796.116
1995	4450.274
1996	4927.876
1997	5150.476
1998	5639.961
1999	5879.430
2000	5177.445
2001	5098.207
2002	5368.942
2003	5919.403
2004	6489.162
2005	7640.764
2006	8519.451
2007	9643.443
2008	10762.268
2009	11507.504
2010	12936.659
2011	14814.767
2012	15677.276
2013	16435.364
2014	16778.151
2015	17163.544
2016	17700.561
2017	18226.656
2018	19677.999
2019	19757.816
2020	18368.619
2021	17369.868
2022	17704.529
2023	18475.261
2024	19102.326
2025	19867.944
2026	20586.586
2027	21364.552
2028	22142.300
2029	22932.833