Year National currency, Sum Over Component Sub-periods 1960-01-01 0 1961-01-01 0 1962-01-01 0 1963-01-01 0 1964-01-01 0 1965-01-01 0 1966-01-01 0 1967-01-01 0 1968-01-01 0 1969-01-01 0 1970-01-01 0 1971-01-01 0 1972-01-01 0 1973-01-01 0 1974-01-01 0 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 656000000 1989-01-01 0 1990-01-01 114000000 1991-01-01 4000000 1992-01-01 0 1993-01-01 2000000 1994-01-01 0 1995-01-01 0 1996-01-01 0 1997-01-01 0 1998-01-01 0 1999-01-01 0 2000-01-01 0 2001-01-01 6000000 2002-01-01 8000000 2003-01-01 48000000 2004-01-01 29000000 2005-01-01 89000000 2006-01-01 461000000 2007-01-01 33000000 2008-01-01 7000000 2009-01-01 23000000 2010-01-01 73000000 2011-01-01 1000000 2012-01-01 0 2013-01-01 0