Year	National Currency
2004-01-01	4402000000
2005-01-01	6970000000
2006-01-01	9100000000
2007-01-01	13882000000
2008-01-01	18242000000
2009-01-01	19350000000
2010-01-01	19239000000
2011-01-01	19165000000
2012-01-01	18977000000
2013-01-01	18940000000
2014-01-01	18642000000
2015-01-01	18387000000
2016-01-01	18750000000
2017-01-01	19867000000
