Year National Currency 2004-01-01 3147000000 2005-01-01 3525000000 2006-01-01 4309000000 2007-01-01 6019000000 2008-01-01 8594000000 2009-01-01 9166000000 2010-01-01 10022201000 2011-01-01 11749248000 2012-01-01 13501832000 2013-01-01 14749074000 2014-01-01 16996588600 2015-01-01 18950980000 2016-01-01 20738272000