Year National currency, Sum Over Component Sub-periods 1975-01-01 3423000000 1976-01-01 4144000000 1977-01-01 5226000000 1978-01-01 5945000000 1979-01-01 7341000000 1980-01-01 8929000000 1981-01-01 10195000000 1982-01-01 10644000000 1983-01-01 11775000000 1984-01-01 13697000000 1985-01-01 14195000000 1986-01-01 13893000000 1987-01-01 14443000000 1988-01-01 15691000000 1989-01-01 16862000000 1990-01-01 17119000000 1991-01-01 15692000000 1992-01-01 18160000000 1993-01-01 22658000000 1994-01-01 26045000000 1995-01-01 29735000000 1996-01-01 31479000000 1997-01-01 35957000000 1998-01-01 38970000000 1999-01-01 39389000000 2000-01-01 49721000000 2001-01-01 47917000000 2002-01-01 47374000000 2003-01-01 46495000000 2004-01-01 49063000000 2005-01-01 52586000000 2006-01-01 61437000000 2007-01-01 65744000000 2008-01-01 65890000000 2009-01-01 45103000000 2010-01-01 52478000000 2011-01-01 56855000000 2012-01-01 57161000000 2013-01-01 56205000000