Year	National Currency
2010-01-01	7282196700
2011-01-01	9011339500
2012-01-01	10655850700
2013-01-01	12302729100
2014-01-01	13294069600
2015-01-01	14024710100
2016-01-01	16110236900
2017-01-01	18501349700