Year	National Currency
2007-01-01	1838300000
2008-01-01	3236100000
2009-01-01	4812300000
2010-01-01	7076000000
2011-01-01	10831300000
2012-01-01	10410000000
2013-01-01	13544000000
2014-01-01	17482000000
2015-01-01	15644000000
2016-01-01	16899700000