Year National currency, Sum Over Component Sub-periods 1970-01-01 258000000 1971-01-01 -11000000 1972-01-01 -2319000000 1973-01-01 -2951000000 1974-01-01 -2740000000 1975-01-01 -3218000000 1976-01-01 -3055000000 1977-01-01 -418000000 1978-01-01 1874000000 1979-01-01 2379000000 1980-01-01 1924000000 1981-01-01 -3046000000 1982-01-01 -4694500000 1983-01-01 -5106700000 1984-01-01 -9161000000 1985-01-01 -5244900000 1986-01-01 -1602400000 1987-01-01 -3874100000 1988-01-01 -2641300000 1989-01-01 -8519400000 1990-01-01 -4359100000 1991-01-01 -4475100000 1992-01-01 -10560200000 1993-01-01 -14975900000 1994-01-01 -8291500000 1995-01-01 -12162700000 1996-01-01 295400000 1997-01-01 -10105900000 1998-01-01 -10972000000 1999-01-01 -5037600000 2000-01-01 -7258100000 2001-01-01 -3590200000 2002-01-01 -4535600000 2003-01-01 -20726400000 2004-01-01 -36347400000 2005-01-01 -30307400000 2006-01-01 -53470300000 2007-01-01 -25110100000 2008-01-01 -21953000000 2009-01-01 -41545700000 2010-01-01 -31786100000 2011-01-01 -50372300000 2012-01-01 -47718900000 2013-01-01 -57002300000