Year National Currency 2010-01-01 29245000000 2011-01-01 31020000000 2012-01-01 31961000000 2013-01-01 32137937900 2014-01-01 31827000000 2015-01-01 31837000000 2016-01-01 37175000000 2017-01-01 39183000000