Year National currency, Sum Over Component Sub-periods 1960-01-01 -1805000000 1961-01-01 -2833000000 1962-01-01 -2262000000 1963-01-01 -4053000000 1964-01-01 -5917000000 1965-01-01 -4974000000 1966-01-01 -3660000000 1967-01-01 -2378000000 1968-01-01 -1049000000 1969-01-01 1118000000 1970-01-01 -2110000000 1971-01-01 11213000000 1972-01-01 7674000000 1973-01-01 -4486000000 1974-01-01 483000000 1975-01-01 -22833000000 1976-01-01 -13429000000 1977-01-01 17985000000 1978-01-01 5145000000 1979-01-01 -25360000000 1980-01-01 -24932000000 1981-01-01 -28463000000 1982-01-01 -32627000000 1983-01-01 21233000000 1984-01-01 75908000000 1985-01-01 99794000000 1986-01-01 116907000000 1987-01-01 168169000000 1988-01-01 138753000000 1989-01-01 47586000000 1990-01-01 51224000000 1991-01-01 38704000000 1992-01-01 95388000000 1993-01-01 78494000000 1994-01-01 123125000000 1995-01-01 82617000000 1996-01-01 134468000000 1997-01-01 218721000000 1998-01-01 66958000000 1999-01-01 233972000000 2000-01-01 477699000000 2001-01-01 413452000000 2002-01-01 500374000000 2003-01-01 531058000000 2004-01-01 535380000000 2005-01-01 713833000000 2006-01-01 777652000000 2007-01-01 611421000000 2008-01-01 769525000000 2009-01-01 186062000000 2010-01-01 423809000000 2011-01-01 515489000000 2012-01-01 453370000000