Year	National Currency
1975-01-01	616000000
1976-01-01	737000000
1977-01-01	1167000000
1978-01-01	1068000000
1979-01-01	996000000
1980-01-01	1054000000
1981-01-01	1418000000
1982-01-01	2202000000
1983-01-01	2376000000
1984-01-01	2341000000
1985-01-01	3055000000
1986-01-01	4645000000
1987-01-01	6481000000
1988-01-01	9617000000
1989-01-01	9720000000
1990-01-01	8396000000
1991-01-01	5838000000
1992-01-01	6145000000
1993-01-01	7558000000
1994-01-01	8209000000
1995-01-01	11720000000
1996-01-01	9728000000
1997-01-01	12840000000
1998-01-01	12751000000
1999-01-01	11514000000
2000-01-01	11644000000
2001-01-01	12589000000
2002-01-01	12933000000
2003-01-01	14613000000
2004-01-01	17507000000
2005-01-01	18719000000
2006-01-01	25550000000
2007-01-01	25010000000
2008-01-01	41779000000
2009-01-01	45754000000