Year	US Dollars, Sum Over Component Sub-periods
1994-01-01	3472000000
1995-01-01	3469000000
1996-01-01	3529000000
1997-01-01	2934000000
1998-01-01	2086000000
1999-01-01	1213000000
2000-01-01	867000000
2001-01-01	11503000000
2002-01-01	19924000000
2003-01-01	1609000000
2004-01-01	2486000000
2005-01-01	13442000000
2006-01-01	832000000
2007-01-01	11617000000
2008-01-01	1152000000
2009-01-01	13518000000
2010-01-01	951000000
2011-01-01	988000000