Year	National Currency
2004-01-01	4013580000
2005-01-01	4723254000
2006-01-01	5820297000
2007-01-01	6584177000
2008-01-01	7963457000
2009-01-01	9669632000
2010-01-01	11227772000
2011-01-01	12377061000
2012-01-01	13188681000
2013-01-01	15192000000
2014-01-01	16857000000
2015-01-01	16538000000
2016-01-01	18533000000