Year	National Currency
2007-01-01	3775000000
2008-01-01	5383000000
2009-01-01	6999000000
2010-01-01	8132000000
2011-01-01	8728000000
2012-01-01	10012000000
2013-01-01	11741000000
2014-01-01	13668000000