Year	National Currency
1998-01-01	42433815854
1999-01-01	47154134832
2000-01-01	52936017917
2001-01-01	58853926328
2002-01-01	62831569899
2003-01-01	67927210559
2004-01-01	73788643754
2005-01-01	81908864677
2006-01-01	89631232654
2007-01-01	98017560415
2008-01-01	99958401983
2009-01-01	91802933885
2010-01-01	86468944391