Year National currency, Sum Over Component Sub-periods 1970-01-01 248000000 1971-01-01 29000000 1972-01-01 -2281000000 1973-01-01 -2887000000 1974-01-01 -2745000000 1975-01-01 -3227000000 1976-01-01 -3202000000 1977-01-01 -659000000 1978-01-01 1569000000 1979-01-01 2183000000 1980-01-01 1744000000 1981-01-01 -3254000000 1982-01-01 -5070000000 1983-01-01 -5298500000 1984-01-01 -9273300000 1985-01-01 -5311500000 1986-01-01 -1815300000 1987-01-01 -4088500000 1988-01-01 -2818800000 1989-01-01 -8820900000 1990-01-01 -4603400000 1991-01-01 -4711300000 1992-01-01 -11059900000 1993-01-01 -15583400000 1994-01-01 -9117700000 1995-01-01 -12960100000 1996-01-01 -1270100000 1997-01-01 -11234600000 1998-01-01 -11349300000 1999-01-01 -5244200000 2000-01-01 -7360700000 2001-01-01 -7161100000 2002-01-01 -5116700000 2003-01-01 -23511900000 2004-01-01 -37643000000 2005-01-01 -31721100000 2006-01-01 -55590300000 2007-01-01 -26650200000 2008-01-01 -24997800000 2009-01-01 -41745100000 2010-01-01 -34914900000 2011-01-01 -51372700000 2012-01-01 -57359200000 2013-01-01 -57373900000