Year National Currency 2004-01-01 996000000 2005-01-01 1628000000 2006-01-01 2168000000 2007-01-01 3246000000 2008-01-01 4474000000 2009-01-01 4936000000 2010-01-01 5824000000 2011-01-01 6991000000 2012-01-01 9289600000