Year National Currency 2004-01-01 4531000 2005-01-01 6042000 2006-01-01 6732000 2007-01-01 7944000 2008-01-01 8331000 2009-01-01 9153000 2010-01-01 11328000 2011-01-01 12545000 2012-01-01 14028000 2013-01-01 15154000 2014-01-01 16212000 2015-01-01 18260000 2016-01-01 19000000