Year National Currency 2004-01-01 6003000000 2005-01-01 7559000000 2006-01-01 9613000000 2007-01-01 11157000000 2008-01-01 12924000000 2009-01-01 13197000000 2010-01-01 14333000000 2011-01-01 15735000000 2012-01-01 17714000000 2013-01-01 18826000000 2014-01-01 19161000000 2015-01-01 20990000000 2016-01-01 22792300000