Year National Currency 2004-01-01 3856000000 2005-01-01 4891000000 2006-01-01 5423000000 2007-01-01 6100000000 2008-01-01 9001000000 2009-01-01 9395000000 2010-01-01 8982000000 2011-01-01 11095000000 2012-01-01 15265000000 2013-01-01 18303000000 2014-01-01 21646000000 2015-01-01 28669000000 2016-01-01 24230000000