Year	National Currency
2004-01-01	4496700
2005-01-01	8761200
2006-01-01	16115400
2007-01-01	9015600
2008-01-01	13273300
2009-01-01	16313400
2010-01-01	10041700
2011-01-01	8938400
2012-01-01	8717000