Year National Currency 2004-01-01 4103480000 2005-01-01 4832154000 2006-01-01 5967797000 2007-01-01 6834677000 2008-01-01 8268857000 2009-01-01 10047132000 2010-01-01 11677772000 2011-01-01 12943561000 2012-01-01 13867681000 2013-01-01 15901800000 2014-01-01 17748200000 2015-01-01 17072400000 2016-01-01 19871000000