Year National currency, Sum Over Component Sub-periods 1960-01-01 -1019000000 1961-01-01 -989000000 1962-01-01 -1123000000 1963-01-01 -361000000 1964-01-01 -907000000 1965-01-01 -457000000 1966-01-01 629000000 1967-01-01 -205000000 1968-01-01 438000000 1969-01-01 -1517000000 1970-01-01 -219000000 1971-01-01 -9779000000 1972-01-01 -1879000000 1973-01-01 -2654000000 1974-01-01 -2444000000 1975-01-01 4717000000 1976-01-01 9134000000 1977-01-01 -3651000000 1978-01-01 9997000000 1979-01-01 25647000000 1980-01-01 22614000000 1981-01-01 23433000000 1982-01-01 38362000000 1983-01-01 17666000000 1984-01-01 18673000000 1985-01-01 18677000000 1986-01-01 30570000000 1987-01-01 -7149000000 1988-01-01 -17108000000 1989-01-01 52299000000 1990-01-01 28066000000 1991-01-01 -41601000000 1992-01-01 -43776000000 1993-01-01 6313000000 1994-01-01 -1514000000 1995-01-01 30951000000 1996-01-01 -9706000000 1997-01-01 -77995000000 1998-01-01 148106000000 1999-01-01 66806000000 2000-01-01 -61383000000 2001-01-01 -16755000000 2002-01-01 -42574000000 2003-01-01 -12402000000 2004-01-01 93947000000 2005-01-01 25964000000 2006-01-01 -8884000000 2007-01-01 95746000000 2008-01-01 -55236000000 2009-01-01 150757000000 2010-01-01 11585000000 2011-01-01 -92771000000 2012-01-01 -5892000000 2013-01-01 28457000000