Year US Dollars, Sum Over Component Sub-periods 1995-01-01 148000000 1996-01-01 124000000 1997-01-01 151000000 1998-01-01 150000000 1999-01-01 148000000 2000-01-01 135000000 2001-01-01 142000000 2002-01-01 60000000 2003-01-01 30000000 2004-01-01 -95000000 2005-01-01 -120000000 2006-01-01 -224000000 2007-01-01 -333000000 2008-01-01 -413000000 2009-01-01 -241000000 2010-01-01 117000000 2011-01-01 210000000 2012-01-01 21000000 2013-01-01 80000000