Year	US Dollars, Sum Over Component Sub-periods
1994-01-01	6968000000
1995-01-01	14021000000
1996-01-01	16080000000
1997-01-01	-15201000000
1998-01-01	9029000000
1999-01-01	-889000000
2000-01-01	-4172000000
2001-01-01	-6528000000
2002-01-01	-3874000000
2003-01-01	22645000000
2004-01-01	17680000000
2005-01-01	42358000000
2006-01-01	30340000000
2007-01-01	139751000000
2008-01-01	63239000000
2009-01-01	-25185000000
2010-01-01	10011000000
2011-01-01	40888000000