Year National Currency 2004-01-01 4380000000 2005-01-01 6101000000 2006-01-01 9414000000 2007-01-01 12191000000 2008-01-01 17372000000 2009-01-01 18630000000 2010-01-01 16493000000 2011-01-01 18155000000 2012-01-01 19293000000 2013-01-01 22312000000 2014-01-01 28569000000 2015-01-01 38077000000 2016-01-01 26805000000