Year National Currency 2004-01-01 10245449000 2005-01-01 10766826400 2006-01-01 11565739300 2007-01-01 12649453800 2008-01-01 13772377700 2009-01-01 14363419300 2010-01-01 14855771300 2011-01-01 15092334800 2012-01-01 15011000000 2013-01-01 14394000000 2014-01-01 14988000000 2015-01-01 15361000000 2016-01-01 16328000000 2017-01-01 17157000000