Year	National Currency
2004-01-01	2840796000000
2005-01-01	2833360000000
2006-01-01	3426503000000
2007-01-01	5305726000000
2008-01-01	8855020000000
2009-01-01	10053628000000
2010-01-01	10253793000000
2011-01-01	12010422000000
2012-01-01	14989522000000
2013-01-01	17813977000000
2014-01-01	17751146000000
2015-01-01	17277995000000
2016-01-01	17428353000000
2017-01-01	16972282000000