Year US Dollars, Sum Over Component Sub-periods 1985-01-01 54276790000 1986-01-01 89752390000 1987-01-01 91492320000 1988-01-01 92203850000 1989-01-01 80022220000 1990-01-01 69428250000 1991-01-01 96082960000 1992-01-01 124541980000 1993-01-01 139254550000 1994-01-01 144107480000 1995-01-01 131231060000 1996-01-01 81318150000 1997-01-01 99985480000 1998-01-01 120345020000 1999-01-01 120982890000 2000-01-01 114729280000 2001-01-01 69156540000 2002-01-01 92214320000 2003-01-01 103302390000 2004-01-01 128549210000 2005-01-01 93838090000 2006-01-01 81340290000 2007-01-01 104644290000 2008-01-01 38957080000 2009-01-01 43154140000 2010-01-01 90917740000 2011-01-01 -20280590000 2012-01-01 -72846000000 2013-01-01 -109017520000