Year	National Currency
2006-01-01	1988745000
2007-01-01	3655458700
2008-01-01	4254586000
2009-01-01	3348677000
2010-01-01	2145850000
2011-01-01	1298033000
2012-01-01	1394720000
2013-01-01	1373200000
2014-01-01	1089900000
2015-01-01	947900000
2016-01-01	920000000
2017-01-01	1024000000