Year	US Dollars, Sum Over Component Sub-periods
1995-01-01	16180000
1996-01-01	-9910000
1997-01-01	-41420000
1998-01-01	6920000
1999-01-01	-58930000
2000-01-01	-77170000
2001-01-01	-159130000
2002-01-01	-165380000
2003-01-01	-487460000
2004-01-01	-549330000
2005-01-01	-641050000
2006-01-01	-861940000
2007-01-01	-1864790000
2008-01-01	-1465100000
2009-01-01	-262430000
2010-01-01	207140000
2011-01-01	-117500000
2012-01-01	290230000
2013-01-01	247450000