Year	National Currency
2004-01-01	5324179600
2005-01-01	4004200400
2006-01-01	431444300
2007-01-01	545848700
2008-01-01	179289100
2009-01-01	186056600
2010-01-01	219000000
2011-01-01	217000000
2012-01-01	236000000
2013-01-01	346000000
2014-01-01	409000000
2015-01-01	442000000
2016-01-01	437000000
2017-01-01	441000000