Year National currency, Sum Over Component Sub-periods 1999-01-01 12439000000 2000-01-01 12449000000 2001-01-01 13569000000 2002-01-01 15230000000 2003-01-01 14869000000 2004-01-01 16244000000 2005-01-01 16403000000 2006-01-01 17057000000 2007-01-01 18530000000 2008-01-01 17352000000 2009-01-01 18152000000 2010-01-01 18215000000 2011-01-01 19558000000 2012-01-01 20421000000 2013-01-01 19529000000