Year	National currency (Units)
1980	23511.449
1981	23440.869
1982	23858.114
1983	24599.625
1984	24678.584
1985	25215.189
1986	25778.409
1987	26176.681
1988	26394.652
1989	27355.639
1990	28355.859
1991	29080.322
1992	29354.124
1993	29195.801
1994	29722.910
1995	30440.747
1996	31128.748
1997	31744.453
1998	32845.297
1999	33947.289
2000	35008.961
2001	35317.142
2002	35723.494
2003	35899.372
2004	36650.121
2005	37218.183
2006	38305.018
2007	39602.316
2008	40053.459
2009	38453.438
2010	39068.138
2011	40078.374
2012	40170.176
2013	39939.096
2014	39889.327
2015	39894.379
2016	40174.610
2017	40733.180
2018	41392.641
2019	42115.320
2020	39135.389
2021	40652.318
2022	42386.579
2023	41485.941
2024	41539.021
2025	42091.903
2026	42557.520
2027	42877.389
2028	43135.179
2029	43408.607