Year National currency, Sum Over Component Sub-periods 1987-01-01 4483000000 1988-01-01 4809000000 1989-01-01 5304000000 1990-01-01 5570000000 1991-01-01 5923000000 1992-01-01 6661000000 1993-01-01 6458000000 1994-01-01 6717000000 1995-01-01 7101000000 1996-01-01 7057000000 1997-01-01 7344000000 1998-01-01 8335000000 1999-01-01 8594000000 2000-01-01 9975000000 2001-01-01 10400000000 2002-01-01 10417000000 2003-01-01 9972000000 2004-01-01 10990000000 2005-01-01 11851000000 2006-01-01 12407000000 2007-01-01 12875000000 2008-01-01 14431000000 2009-01-01 13469000000 2010-01-01 13907000000 2011-01-01 14986000000 2012-01-01 14991000000 2013-01-01 15024000000