Year US Dollars, Sum Over Component Sub-periods 1979-01-01 10500000 1980-01-01 4200000 1981-01-01 21000000 1982-01-01 6000000 1983-01-01 6800000 1984-01-01 1400000 1985-01-01 1500000 1986-01-01 7200000 1987-01-01 4500000 1988-01-01 1400000 1989-01-01 3000000 1990-01-01 0 1991-01-01 100000 1992-01-01 600000 1993-01-01 700000 1994-01-01 2000000 1995-01-01 12100000 1996-01-01 12500000 1997-01-01 13600000 1998-01-01 84900000 1999-01-01 22400000 2000-01-01 27700000 2001-01-01 364200000 2002-01-01 31500000 2003-01-01 37200000 2004-01-01 433100000 2005-01-01 242500000 2006-01-01 213400000 2007-01-01 333100000 2008-01-01 450600000 2009-01-01 300200000 2010-01-01 305600000 2011-01-01 472800000 2012-01-01 3956700000 2013-01-01 437900000 2014-01-01 348200000