Year	National Currency
1998-01-01	9450045335.1
1999-01-01	10562984404.7
2000-01-01	11833368107.2
2001-01-01	12492988815.2
2002-01-01	12890251089.3
2003-01-01	13808676992.8
2004-01-01	14683238577.5
2005-01-01	16434131631.5
2006-01-01	17375561189.8
2007-01-01	19415114396.9
2008-01-01	19857398161.2
2009-01-01	18197831565.2
2010-01-01	16730149289.9