Year	National currency (Units)
1980	31883.244
1981	32366.107
1982	31479.637
1983	32624.927
1984	34680.696
1985	35807.236
1986	36711.842
1987	37642.520
1988	38859.951
1989	39909.268
1990	40212.973
1991	39639.103
1992	40494.352
1993	41069.853
1994	42208.934
1995	42832.333
1996	43933.418
1997	45342.004
1998	46825.468
1999	48510.106
2000	49933.507
2001	49894.568
2002	50249.116
2003	51171.721
2004	52659.769
2005	53992.383
2006	54973.253
2007	55522.604
2008	55072.231
2009	53189.724
2010	54206.538
2011	54664.954
2012	55520.799
2013	56308.602
2014	57315.088
2015	58579.252
2016	59221.632
2017	60292.978
2018	61750.700
2019	62980.639
2020	61080.527
2021	64416.871
2022	65431.880
2023	66762.200
2024	68176.929
2025	69039.954
2026	70015.184
2027	71067.704
2028	72137.322
2029	73223.039
