Year National currency, Sum Over Component Sub-periods 1987-01-01 12227000000 1988-01-01 13502000000 1989-01-01 14756000000 1990-01-01 15413000000 1991-01-01 16568000000 1992-01-01 18090000000 1993-01-01 19330000000 1994-01-01 20167000000 1995-01-01 20413000000 1996-01-01 20799000000 1997-01-01 21555000000 1998-01-01 22877000000 1999-01-01 23927000000 2000-01-01 29649000000 2001-01-01 33009000000 2002-01-01 31283000000 2003-01-01 28901000000 2004-01-01 30851000000 2005-01-01 31256000000 2006-01-01 34871000000 2007-01-01 37053000000 2008-01-01 43919000000 2009-01-01 40301000000 2010-01-01 44231000000 2011-01-01 48533000000 2012-01-01 46766000000 2013-01-01 48712000000