Year	National currency (Units)
1980	20207.491
1981	20107.831
1982	20793.307
1983	21952.046
1984	23174.925
1985	23047.225
1986	23476.428
1987	23530.212
1988	23290.336
1989	21860.434
1990	20608.893
1991	17971.908
1992	16459.574
1993	16803.054
1994	17570.916
1995	18937.555
1996	19795.302
1997	18696.364
1998	17885.254
1999	17763.758
2000	18284.642
2001	19260.236
2002	20915.289
2003	21608.799
2004	23980.131
2005	25262.480
2006	27451.666
2007	29613.715
2008	33146.564
2009	31616.753
2010	30601.301
2011	32135.012
2012	32921.583
2013	33135.647
2014	34626.903
2015	35859.104
2016	37089.231
2017	40367.525
2018	43043.342
2019	44975.925
2020	43513.837
2021	46302.648
2022	48835.331
2023	49897.782
2024	51514.515
2025	53687.500
2026	56102.754
2027	58642.271
2028	61170.317
2029	63742.254