Year	US Dollars, Sum Over Component Sub-periods
1994-01-01	-20012000000
1995-01-01	-610000000
1996-01-01	-28119000000
1997-01-01	-20662000000
1998-01-01	-14919000000
1999-01-01	-13296000000
2000-01-01	-17525000000
2001-01-01	149000000
2002-01-01	1696000000
2003-01-01	-15886000000
2004-01-01	-26644000000
2005-01-01	-33328000000
2006-01-01	-49422000000
2007-01-01	-60062000000
2008-01-01	-177515000000
2009-01-01	6141000000
2010-01-01	-23392000000
2011-01-01	-83326000000