Year National currency, Sum Over Component Sub-periods 1990-01-01 2282000000 1991-01-01 2623000000 1992-01-01 4445000000 1993-01-01 6129000000 1994-01-01 6852000000 1995-01-01 9471000000 1996-01-01 11117000000 1997-01-01 14059000000 1998-01-01 17511000000 1999-01-01 22170000000 2000-01-01 27266000000 2001-01-01 30493000000 2002-01-01 35443000000 2003-01-01 32605000000 2004-01-01 31423000000 2005-01-01 28218000000 2006-01-01 25031000000 2007-01-01 19811000000 2008-01-01 23811000000 2009-01-01 32469000000 2010-01-01 35751000000 2011-01-01 36681000000 2012-01-01 36367000000 2013-01-01 32179000000