Year National Currency 2004-01-01 23450564200 2005-01-01 27073424400 2006-01-01 33163443500 2007-01-01 38625497900 2008-01-01 37374887300 2009-01-01 39740955600 2010-01-01 37041344000 2011-01-01 36466659500 2012-01-01 38235675000 2013-01-01 42697016000 2014-01-01 50805000000 2015-01-01 46587000000 2016-01-01 48810000000 2017-01-01 52405000000