Year National currency, Sum Over Component Sub-periods 1997-01-01 2285000000 1998-01-01 2279000000 1999-01-01 2460000000 2000-01-01 2390000000 2001-01-01 2603000000 2002-01-01 1823000000 2003-01-01 1392000000 2004-01-01 2618000000 2005-01-01 2325000000 2006-01-01 3311000000 2007-01-01 4674000000 2008-01-01 4638000000 2009-01-01 2328000000 2010-01-01 2356000000 2011-01-01 2933000000 2012-01-01 2565000000 2013-01-01 3381000000