Year National Currency 2004-01-01 4500000000 2005-01-01 4500000000 2006-01-01 5500000000 2007-01-01 7439000000 2008-01-01 11083000000 2009-01-01 14635000000 2010-01-01 15505000000 2011-01-01 20318000000 2012-01-01 16670000000 2013-01-01 16311086000 2014-01-01 15309272000 2015-01-01 13472840000 2016-01-01 18374411000 2017-01-01 18753614000