Year	US Dollars, Sum Over Component Sub-periods
1995-01-01	-7348000000
1996-01-01	-7419000000
1997-01-01	-5864000000
1998-01-01	-4010000000
1999-01-01	-4739000000
2000-01-01	-3935000000
2001-01-01	-3708000000
2002-01-01	-4272000000
2003-01-01	-2833000000
2004-01-01	-2573000000
2005-01-01	-3411000000
2006-01-01	-4433000000
2007-01-01	-5225000000
2008-01-01	-6476000000
2009-01-01	-161000000
2010-01-01	-1757000000
2011-01-01	-8342000000
2012-01-01	-10588000000
2013-01-01	-8781000000
2014-01-01	-8176000000