Year	National Currency
2010-01-01	47488000000
2011-01-01	61677000000
2012-01-01	58546000000
2013-01-01	55918000000
2014-01-01	48148000000
2015-01-01	33576000000
2016-01-01	28207000000
2017-01-01	26222000000