Year	US Dollars, Sum Over Component Sub-periods
1995-01-01	-2433000000
1996-01-01	-2648000000
1997-01-01	-1963000000
1998-01-01	-2355000000
1999-01-01	1569500000
2000-01-01	-2910000000
2001-01-01	-2234500000
2002-01-01	-2119000000
2003-01-01	-3367300000
2004-01-01	-3810500000
2005-01-01	-3139200000
2006-01-01	-3083900000
2007-01-01	-962700000
2008-01-01	-1749100000
2009-01-01	3340500000
2010-01-01	3250000000
2011-01-01	4342200000
2012-01-01	4425800000
2013-01-01	5742200000