Year	National currency (Units)
1980	17176.953
1981	16311.270
1982	15516.483
1983	15606.291
1984	15149.331
1985	14236.057
1986	13797.364
1987	14540.182
1988	14317.450
1989	14519.628
1990	14430.006
1991	14870.855
1992	16291.058
1993	16468.755
1994	17304.638
1995	18520.032
1996	18296.650
1997	17629.364
1998	17367.823
1999	16814.785
2000	14027.365
2001	12567.612
2002	11893.519
2003	12341.130
2004	12832.836
2005	13214.385
2006	13536.772
2007	13820.750
2008	14296.803
2009	14327.826
2010	15188.503
2011	15881.200
2012	15677.276
2013	16057.473
2014	15812.012
2015	15649.450
2016	16084.096
2017	16146.565
2018	16162.216
2019	16028.312
2020	15101.517
2021	15112.181
2022	15099.124
2023	15166.607
2024	15148.907
2025	15154.551
2026	15173.391
2027	15236.650
2028	15303.488
2029	15373.899