Year	National Currency
1980-01-01	5621881696.4
1981-01-01	5967254280.9
1982-01-01	6677126408.8
1983-01-01	7278305188.9
1984-01-01	7020250234.8
1985-01-01	7152789905.9
1986-01-01	7845619938.4
1987-01-01	9457539934.9
1988-01-01	11254651552.1
1989-01-01	13703429498.9
1990-01-01	16687964248.9
1991-01-01	19393893620.5
1992-01-01	20583591200.7
1993-01-01	20711822424.8
1994-01-01	20909983202.2
1995-01-01	22801478245.4
1996-01-01	24020337042.2
1997-01-01	26260552581.6
1998-01-01	28584058619.7
1999-01-01	32015717916.9
2000-01-01	36005618388.7
2001-01-01	41128580170.2
2002-01-01	45376322822.0
2003-01-01	49894454608.0
2004-01-01	54833525867.0
2005-01-01	62090436019.0
2006-01-01	70091668535.0
2007-01-01	76327675937.0
2008-01-01	76465145239.0
2009-01-01	65023849503.0
2010-01-01	57911366083.0