Year	National Currency
2004-01-01	5700000000
2005-01-01	6150000000
2006-01-01	6540000000
2007-01-01	6800000000
2008-01-01	6990000000
2009-01-01	6325000000
2010-01-01	5564000000
2011-01-01	4736000000
2012-01-01	4033000000
2013-01-01	3478000000
2014-01-01	3252000000
2015-01-01	3265000000
2016-01-01	4167000000
2017-01-01	4477000000