Year	National Currency
2008-01-01	36439250000
2009-01-01	30078040000
2010-01-01	25433000000
2011-01-01	23477909100
2012-01-01	22087397800
2013-01-01	22371000000
2014-01-01	21097000000
2015-01-01	21628177900
2016-01-01	24511867900
2017-01-01	28292135000