Year	National currency (Units)
1980	9339.947
1981	9585.473
1982	9733.149
1983	9782.236
1984	9643.163
1985	9774.192
1986	10089.502
1987	10862.482
1988	11454.438
1989	12233.840
1990	13224.142
1991	13701.320
1992	14141.175
1993	14026.812
1994	14197.437
1995	14474.816
1996	14925.933
1997	15513.265
1998	16177.211
1999	16714.430
2000	17230.692
2001	17442.192
2002	17480.681
2003	17253.107
2004	17519.673
2005	17624.042
2006	17878.087
2007	18290.240
2008	18322.214
2009	17733.389
2010	18033.179
2011	17753.325
2012	17102.360
2013	17037.725
2014	17265.491
2015	17647.850
2016	18061.091
2017	18740.114
2018	19304.994
2019	19818.098
2020	18154.034
2021	19200.270
2022	20502.607
2023	20949.212
2024	21290.844
2025	21708.988
2026	22199.358
2027	22685.226
2028	23174.905
2029	23662.553