Year	National Currency
2006-01-01	3896000000
2007-01-01	4432000000
2008-01-01	5036000000
2009-01-01	7008000000
2010-01-01	11577000000
2011-01-01	15472000000
2012-01-01	22643701000
2013-01-01	28793000000
2014-01-01	29120000000
2015-01-01	30201000000
2016-01-01	28262039000
2017-01-01	33526000000