Year National currency, Sum Over Component Sub-periods 1987-01-01 469000000 1988-01-01 472000000 1989-01-01 526000000 1990-01-01 532000000 1991-01-01 557000000 1992-01-01 578000000 1993-01-01 573000000 1994-01-01 1032000000 1995-01-01 852000000 1996-01-01 1296000000 1997-01-01 1029000000 1998-01-01 1262000000 1999-01-01 1151000000 2000-01-01 1396000000 2001-01-01 1404000000 2002-01-01 1384000000 2003-01-01 1465000000 2004-01-01 1370000000 2005-01-01 1776000000 2006-01-01 2007000000 2007-01-01 1942000000 2008-01-01 2394000000 2009-01-01 1918000000 2010-01-01 1403000000 2011-01-01 1317000000 2012-01-01 1272000000 2013-01-01 1253000000