Year National currency, Sum Over Component Sub-periods 1960-01-01 -205000000 1961-01-01 86000000 1962-01-01 196000000 1963-01-01 170000000 1964-01-01 -327000000 1965-01-01 -33000000 1966-01-01 161000000 1967-01-01 -247000000 1968-01-01 -231000000 1969-01-01 490000000 1970-01-01 819000000 1971-01-01 1123000000 1972-01-01 142000000 1973-01-01 -1100000000 1974-01-01 -3333000000 1975-01-01 -1695000000 1976-01-01 -972000000 1977-01-01 -286000000 1978-01-01 821000000 1979-01-01 -1002000000 1980-01-01 1740000000 1981-01-01 4846000000 1982-01-01 2233000000 1983-01-01 1258000000 1984-01-01 -1294000000 1985-01-01 -570000000 1986-01-01 -3614000000 1987-01-01 -7435000000 1988-01-01 -19710000000 1989-01-01 -25533000000 1990-01-01 -19825000000 1991-01-01 -8445000000 1992-01-01 -10407000000 1993-01-01 -9421000000 1994-01-01 -3328000000 1995-01-01 -5156000000 1996-01-01 -4413000000 1997-01-01 -963000000 1998-01-01 -3538000000 1999-01-01 -25046000000 2000-01-01 -28324000000 2001-01-01 -23908000000 2002-01-01 -22173000000 2003-01-01 -18991000000 2004-01-01 -24367000000 2005-01-01 -23560000000 2006-01-01 -38342000000 2007-01-01 -31204000000 2008-01-01 -13781000000 2009-01-01 -20051000000 2010-01-01 -40012000000 2011-01-01 -22475000000 2012-01-01 -59657000000 2013-01-01 -72761000000