Year National currency, Sum Over Component Sub-periods 1975-01-01 0 1976-01-01 0 1977-01-01 0 1978-01-01 0 1979-01-01 0 1980-01-01 0 1981-01-01 0 1982-01-01 0 1983-01-01 0 1984-01-01 0 1985-01-01 0 1986-01-01 0 1987-01-01 0 1988-01-01 0 1989-01-01 0 1990-01-01 0 1991-01-01 0 1992-01-01 0 1993-01-01 0 1994-01-01 0 1995-01-01 4000000 1996-01-01 32000000 1997-01-01 76000000 1998-01-01 68000000 1999-01-01 80000000 2000-01-01 120000000 2001-01-01 100000000 2002-01-01 136000000 2003-01-01 136000000 2004-01-01 152000000 2005-01-01 272000000 2006-01-01 180000000 2007-01-01 172000000 2008-01-01 188000000 2009-01-01 160000000 2010-01-01 168000000