Year National Currency 2006-01-01 2713000000 2007-01-01 3670000000 2008-01-01 4670000000 2009-01-01 6608000000 2010-01-01 9188000000 2011-01-01 11919000000 2012-01-01 21684000000 2013-01-01 34584000000 2014-01-01 45680000000 2015-01-01 71763000000