Year	National Currency
2006-01-01	4550000000
2007-01-01	5894000000
2008-01-01	8071000000
2009-01-01	10125000000
2010-01-01	15289000000
2011-01-01	17824000000
2012-01-01	17789000000
2013-01-01	20166000000
2014-01-01	28164000000
2015-01-01	15685000000