Year	National currency (Units)
1980	9448.234
1981	9615.505
1982	10105.426
1983	10504.604
1984	11278.970
1985	11676.710
1986	11953.645
1987	12668.147
1988	13579.412
1989	14465.603
1990	15217.194
1991	14930.315
1992	15908.629
1993	15631.009
1994	16211.094
1995	17643.194
1996	17565.778
1997	17759.672
1998	18596.595
1999	19307.415
2000	20233.107
2001	20819.899
2002	21350.485
2003	21659.474
2004	22459.202
2005	23222.707
2006	23959.662
2007	24718.834
2008	25012.849
2009	23875.121
2010	23757.966
2011	23271.422
2012	21888.700
2013	20355.639
2014	20177.855
2015	21138.171
2016	22492.954
2017	23602.308
2018	24663.171
2019	25682.185
2020	24459.997
2021	26643.877
2022	27722.738
2023	27911.341
2024	28646.798
2025	29209.971
2026	29835.872
2027	30520.576
2028	31228.511
2029	31935.364