Year	National Currency
1975-01-01	19396780035.0
1976-01-01	19477796873.0
1977-01-01	19108691413.5
1978-01-01	19675616784.1
1979-01-01	21114204016.4
1980-01-01	22072788757.5
1981-01-01	22542416351.8
1982-01-01	23383215386.6
1983-01-01	24077931389.9
1984-01-01	25056955894.2
1985-01-01	26111907899.2
1986-01-01	27086809844.3
1987-01-01	28648505863.5
1988-01-01	30087744651.7
1989-01-01	31981476689.2
1990-01-01	32378291677.5
1991-01-01	30255663872.0
1992-01-01	28415925296.1
1993-01-01	28276410494.9
1994-01-01	29488438743.0
1995-01-01	31222129490.3
1996-01-01	32489885431.2
1997-01-01	34301109232.0
1998-01-01	36463270699.2
1999-01-01	38074510884.5
2000-01-01	39767127008.8
2001-01-01	41444296310.9
2002-01-01	41813550980.6
2003-01-01	42020968353.0
2004-01-01	44514443189.0
2005-01-01	45719786401.0
2006-01-01	46706306450.0
2007-01-01	49870319600.0
2008-01-01	50446869888.0
2009-01-01	45754651402.0
2010-01-01	47232772385.0