Year	US Dollars, Sum Over Component Sub-periods
1979-01-01	3000000
1980-01-01	0
1981-01-01	-3000000
1982-01-01	-3000000
1983-01-01	-9000000
1984-01-01	-5000000
1985-01-01	-3000000
1986-01-01	1000000
1987-01-01	0
1988-01-01	0
1989-01-01	-30000000
1990-01-01	-107000000
1991-01-01	0
1992-01-01	0
1993-01-01	-605000000
1994-01-01	-3405000000
1995-01-01	-1155000000
1996-01-01	-403000000
1997-01-01	1708000000
1998-01-01	-457000000
1999-01-01	259000000
2000-01-01	-1696000000
2001-01-01	-795000000
2002-01-01	-321000000
2003-01-01	179000000
2004-01-01	-755000000
2005-01-01	-1771000000
2006-01-01	6000000
2007-01-01	286000000
2008-01-01	1900000000
2009-01-01	4125000000
2010-01-01	-4784000000
2011-01-01	16858000000
2012-01-01	-7764000000
2013-01-01	-8975000000
2014-01-01	-2840000000