Year National Currency 2004-01-01 4866000000 2005-01-01 5320400000 2006-01-01 6206700000 2007-01-01 8031200000 2008-01-01 9755400000 2009-01-01 11426500000 2010-01-01 12859100000 2011-01-01 15276300000 2012-01-01 18482900000 2013-01-01 22961500000 2014-01-01 25426300000 2015-01-01 28671300000 2016-01-01 30849000000