Year National Currency 2004-01-01 20938807800 2005-01-01 27849091700 2006-01-01 23737648800 2007-01-01 21690067100 2008-01-01 16104880900 2009-01-01 16795169200 2010-01-01 15459674100 2011-01-01 13865626600 2012-01-01 14167489800 2013-01-01 14226696600 2014-01-01 13653784300 2015-01-01 13916656500 2016-01-01 13376488600 2017-01-01 14091968600