Year	National Currency
1998-01-01	132321542381
1999-01-01	146049880546
2000-01-01	159057107942
2001-01-01	180178689664
2002-01-01	198505307563
2003-01-01	216184609402
2004-01-01	230521446823
2005-01-01	251182520799
2006-01-01	283723104931
2007-01-01	322555122734
2008-01-01	357287185139
2009-01-01	363651832914
2010-01-01	381370293648