Year	National Currency
2004-01-01	53937734400
2005-01-01	54059550800
2006-01-01	106135000
2008-01-01	27943871100
2009-01-01	13327754900
2010-01-01	8051922900
2011-01-01	7946386700
2012-01-01	6919000000
2013-01-01	8350000000
2014-01-01	7206000000
2015-01-01	8206000000
2016-01-01	9606000000
2017-01-01	7038000000