Year	National currency (Units)
1980	5616.252
1981	6965.208
1982	7049.077
1983	7268.249
1984	7230.868
1985	7722.997
1986	8976.274
1987	11095.008
1988	15635.514
1989	16986.220
1990	21093.443
1991	23779.385
1992	27560.012
1993	29841.920
1994	35539.323
1995	39080.178
1996	46139.147
1997	48622.750
1998	50341.233
1999	50904.709
2000	57364.059
2001	59558.415
2002	64118.050
2003	59835.680
2004	68437.353
2005	78782.712
2006	88098.997
2007	100625.829
2008	118945.898
2009	119508.522
2010	130500.585