Year	National currency (Units)
1980	3092.871
1981	3417.616
1982	3467.533
1983	3363.330
1984	3392.253
1985	3207.132
1986	3246.075
1987	3184.845
1988	3129.039
1989	2665.605
1990	2495.014
1991	2234.754
1992	2476.030
1993	2451.570
1994	2452.420
1995	2493.449
1996	2458.166
1997	2482.784
1998	2503.805
1999	2529.305
2000	2580.607
2001	2653.093
2002	2767.630
2003	2813.460
2004	2970.733
2005	3149.642
2006	3194.500
2007	3249.175
2008	3405.202
2009	3498.410
2010	3501.534
2011	3506.951
2012	3541.400
2013	3405.757
2014	3129.296
2015	2924.922
2016	2842.416
2017	2841.236
2018	2828.079
2019	2813.370
2020	2723.780
2021	2767.749
2022	2800.390
2023	2860.228
2024	2922.255
2025	2994.878
2026	3065.188
2027	3132.766
2028	3199.332
2029	3264.873