Year National currency, Sum Over Component Sub-periods 1996-01-01 4207000000 1997-01-01 4860000000 1998-01-01 5544000000 1999-01-01 5737000000 2000-01-01 7801000000 2001-01-01 10206000000 2002-01-01 8385000000 2003-01-01 8184000000 2004-01-01 9463000000 2005-01-01 11377000000 2006-01-01 17134000000 2007-01-01 19541000000 2008-01-01 20270000000 2009-01-01 17015000000 2010-01-01 19563000000 2011-01-01 18546000000 2012-01-01 14050000000 2013-01-01 12670000000