Year	National Currency
2004-01-01	15296895300
2005-01-01	21782616600
2006-01-01	27412080000
2007-01-01	28936350600
2008-01-01	57964869100
2009-01-01	61990460800
2010-01-01	48383321400
2011-01-01	35948730100
2012-01-01	27712119400
2013-01-01	22645470900
2014-01-01	22036972600
2015-01-01	19811000000
2016-01-01	18605000000
2017-01-01	15916000000