Year National Currency 2004-01-01 537000000 2005-01-01 735000000 2006-01-01 973000000 2007-01-01 1053000000 2008-01-01 1335000000 2009-01-01 1461000000 2010-01-01 1618000000 2011-01-01 1732000000 2012-01-01 1878000000 2013-01-01 1990000000 2014-01-01 2219000000 2015-01-01 2320000000 2016-01-01 2497000000 2017-01-01 2724000000