Year	US Dollars, Sum Over Component Sub-periods
1990-01-01	10460470000
1991-01-01	8048390000
1992-01-01	11081840000
1993-01-01	6495370000
1994-01-01	5164490000
1995-01-01	3365830000
1996-01-01	2555330000
1997-01-01	-5368360000
1998-01-01	-6088920000
1999-01-01	-25529220000
2000-01-01	-18570040000
2001-01-01	-4730810000
2002-01-01	6346480000
2003-01-01	-3158110000
2004-01-01	-36736410000
2005-01-01	-17319380000
2006-01-01	-72358020000
2007-01-01	-72871760000
2008-01-01	-38550000
2009-01-01	-1208040000