Year National Currency 2004-01-01 2297000000 2005-01-01 2796000000 2006-01-01 3529000000 2007-01-01 4851000000 2008-01-01 7568000000 2009-01-01 7979000000 2010-01-01 12176964000 2011-01-01 14103000000 2012-01-01 17168000000 2013-01-01 20029000000 2014-01-01 23653000000 2015-01-01 27731000000 2016-01-01 31426000000 2017-01-01 32713000000