Year	US Dollars, Sum Over Component Sub-periods
1994-01-01	1850000000
1995-01-01	3620000000
1996-01-01	4450000000
1997-01-01	4860000000
1998-01-01	6050000000
1999-01-01	7240000000
2000-01-01	9327000000
2001-01-01	5804000000
2002-01-01	3901000000
2003-01-01	4284000000
2004-01-01	11761000000
2005-01-01	6917000000
2006-01-01	10708000000
2007-01-01	17987000000
2008-01-01	10365000000
2009-01-01	8460000000
2010-01-01	6861000000
2011-01-01	12410000000
2012-01-01	5313000000
2013-01-01	-300000000