Year	National Currency
1988-01-01	34995756217.5
1989-01-01	34370546465.5
1990-01-01	34056505897.3
1991-01-01	33714103569.5
1992-01-01	33689644010.0
1993-01-01	33866086770.8
1994-01-01	35931475752.2
1995-01-01	38807534054.3
1996-01-01	40441032837.7
1997-01-01	43457850469.0
1998-01-01	45819063153.0
1999-01-01	49077288395.0
2000-01-01	52738731892.0
2001-01-01	53187104041.0
2002-01-01	53937426562.0
2003-01-01	55542676500.0
2004-01-01	57427010348.0
2005-01-01	63328332422.0
2006-01-01	69449630492.0
2007-01-01	74861802579.0
2008-01-01	77780990432.0
2009-01-01	68795590922.0
2010-01-01	65792576134.0