Year	National Currency
1990-01-01	62414049000000
1991-01-01	67012193000000
1992-01-01	68814384000000
1993-01-01	70495472000000
1994-01-01	70849442000000
1995-01-01	72330572000000
1996-01-01	73004690000000
1997-01-01	73572440000000
1998-01-01	71957521000000
1999-01-01	69146206000000
2000-01-01	68631063000000
2001-01-01	66742441000000
2002-01-01	63537471000000
2003-01-01	62229961000000
2004-01-01	59944826000000
2005-01-01	59632266000000
2006-01-01	60634765000000
2007-01-01	60297977000000
2008-01-01	60325183000000
2009-01-01	57571969000000
2010-01-01	57321667000000