Year US Dollars, Sum Over Component Sub-periods 1998-01-01 -6321000000.000000 1999-01-01 5180000000.000000 2000-01-01 1922000000.000000 2001-01-01 34775000000.000000 2002-01-01 32291000000.000004 2003-01-01 54873000000.000000 2004-01-01 108152000000.000000 2005-01-01 95349000000.000000 2006-01-01 49305000000.000000 2007-01-01 94232000000.000000 2008-01-01 40126000000.000000 2009-01-01 198470000000.000000 2010-01-01 286865000000.000000 2011-01-01 265500000000.000000 2012-01-01 -16700000000.000000