Year	National Currency
2007-01-01	9666000000
2008-01-01	9081198217
2009-01-01	11076550985
2010-01-01	12129311202
2011-01-01	14196348783
2012-01-01	15878423283
2013-01-01	16848339721
2014-01-01	16975426204