Year	US Dollars, Sum Over Component Sub-periods
1994-01-01	-624000000
1995-01-01	1000000
1996-01-01	282000000
1997-01-01	815000000
1998-01-01	-130000000
1999-01-01	-548000000
2000-01-01	-84000000
2001-01-01	48000000
2002-01-01	-1157000000
2003-01-01	-1296000000
2004-01-01	-1331000000
2005-01-01	-2509000000
2006-01-01	-4649000000
2007-01-01	-6340000000
2008-01-01	2358000000
2009-01-01	-1448000000
2010-01-01	-1111000000
2011-01-01	869000000
2012-01-01	-436000000
2013-01-01	-2179000000