Year	US Dollars, Sum Over Component Sub-periods
1994-01-01	-105000000
1995-01-01	-571000000
1996-01-01	321000000
1997-01-01	1309000000
1998-01-01	-519000000
1999-01-01	2129000000
2000-01-01	705000000
2001-01-01	2261000000
2002-01-01	-994000000
2003-01-01	-1972000000
2004-01-01	4871000000
2005-01-01	-798000000
2006-01-01	261000000
2007-01-01	-3300000000
2008-01-01	-12161000000
2009-01-01	-10045000000
2010-01-01	-10462000000
2011-01-01	-9918000000
2012-01-01	-4067000000
2013-01-01	-8184000000