Year US Dollars, Sum Over Component Sub-periods 1960-01-01 109500000.000000 1961-01-01 142910000.000000 1962-01-01 140390000.000000 1963-01-01 11200000.000000 1964-01-01 -94950000.000000 1965-01-01 -184550000.000000 1966-01-01 122900000.000000 1967-01-01 430450000.000000 1968-01-01 816240000.000000 1969-01-01 937010000.000000 1970-01-01 1094950000.000000 1971-01-01 1507660000.000000 1972-01-01 1803240000.000000 1973-01-01 2221650000.000000 1974-01-01 3021800000.000000 1975-01-01 3780680000.000000 1976-01-01 5159160000.000000 1977-01-01 6461050000.000000 1978-01-01 8083880000.000000 1979-01-01 9686620000.000000 1980-01-01 10259480000.000000 1981-01-01 9595190000.000000 1982-01-01 7441090000.000000 1983-01-01 8193530000.000001 1984-01-01 8117620000.000000 1985-01-01 10905620000.000000 1986-01-01 11993710000.000000 1987-01-01 14067480000.000000 1988-01-01 11363470000.000000 1989-01-01 9594160000.000000 1990-01-01 15770030000.000000 1991-01-01 16062960000.000000 1992-01-01 17036130000.000002 1993-01-01 18146090000.000000 1994-01-01 19336700000.000000 1995-01-01 25556350000.000000 1996-01-01 26917120000.000000 1997-01-01 29600270000.000000 1998-01-01 26672140000.000000 1999-01-01 24993250000.000000 2000-01-01 22707630000.000000 2001-01-01 25824970000.000000 2002-01-01 27513630000.000000 2003-01-01 36991320000.000000 2004-01-01 51516530000.000000 2005-01-01 61023120000.000000 2006-01-01 76636680000.000000 2007-01-01 107658230000.000000 2008-01-01 113046370000.000000 2009-01-01 92871820000.000000 2010-01-01 101524050000.000000 2011-01-01 123165830000.000000 2012-01-01 119349970000.000000 2013-01-01 124152470000.000000