Year National currency, Sum Over Component Sub-periods 1987-01-01 12234000000 1988-01-01 13475000000 1989-01-01 14778000000 1990-01-01 15408000000 1991-01-01 16564000000 1992-01-01 18121000000 1993-01-01 19354000000 1994-01-01 20189000000 1995-01-01 20415000000 1996-01-01 20820000000 1997-01-01 21572000000 1998-01-01 22862000000 1999-01-01 23911000000 2000-01-01 29644000000 2001-01-01 33001000000 2002-01-01 31271000000 2003-01-01 28882000000 2004-01-01 30875000000 2005-01-01 31236000000 2006-01-01 34839000000 2007-01-01 37018000000 2008-01-01 43860000000 2009-01-01 40300000000 2010-01-01 44243000000 2011-01-01 48576000000 2012-01-01 46748000000 2013-01-01 48658000000