Year US Dollars, Sum Over Component Sub-periods 1993-01-01 -145780000 1994-01-01 -355180000 1995-01-01 -664360000 1996-01-01 -1020840000 1997-01-01 -1127700000 1998-01-01 -1117470000 1999-01-01 -824350000 2000-01-01 -788020000 2001-01-01 -774810000 2002-01-01 -1110970000 2003-01-01 -1553100000 2004-01-01 -1949310000 2005-01-01 -1927380000 2006-01-01 -2892090000 2007-01-01 -3613920000 2008-01-01 -2986250000 2009-01-01 -968890000 2010-01-01 -358870000 2011-01-01 -456230000 2012-01-01 -997810000 2013-01-01 -1119350000