Year National Currency 2004-01-01 231299000000 2005-01-01 246477000000 2006-01-01 341296000000 2007-01-01 353093000000 2008-01-01 360869000000 2009-01-01 423723000000 2010-01-01 449403000000 2011-01-01 477022000000 2012-01-01 496922000000 2013-01-01 508779000000 2014-01-01 518767000000 2015-01-01 536093000000 2016-01-01 554772000000