Year US Dollars, Sum Over Component Sub-periods 1995-01-01 -243223940000 1996-01-01 -254163750000 1997-01-01 -303342810000 1998-01-01 -474602160000 1999-01-01 -710474170000 2000-01-01 -717383550000 2001-01-01 -426505310000 2002-01-01 -352773970000 2003-01-01 -336185990000 2004-01-01 -581517430000 2005-01-01 -422130910000 2006-01-01 -695779590000 2007-01-01 -1303436980000 2008-01-01 -1013116150000 2009-01-01 -662125220000 2010-01-01 -655011700000 2011-01-01 -869842150000 2012-01-01 -726145500000 2013-01-01 -624772540000