Year	National Currency
1987-01-01	20939312212.4
1988-01-01	23486783931.7
1989-01-01	24178348317.5
1990-01-01	23809933108.2
1991-01-01	23759637516.5
1992-01-01	23569771658.0
1993-01-01	23084419198.1
1994-01-01	23386192748.3
1995-01-01	23113339163.3
1996-01-01	22830426460.0
1997-01-01	23288116344.5
1998-01-01	24056381507.7
1999-01-01	25433223330.3
2000-01-01	26312138795.2
2001-01-01	26810065153.0
2002-01-01	25916061010.6
2003-01-01	24502754883.9
2004-01-01	23840110463.4
2005-01-01	24587000000.0
2006-01-01	25179230592.2
2007-01-01	26613912345.3
2008-01-01	27881361256.0
2009-01-01	26701929630.7
2010-01-01	23851426971.6