Year	US Dollars, Sum Over Component Sub-periods
1984-01-01	7389000000
1985-01-01	8255000000
1986-01-01	7583000000
1987-01-01	10322000000
1988-01-01	11929000000
1989-01-01	11780000000
1990-01-01	13026000000
1991-01-01	13667000000
1992-01-01	14715000000
1993-01-01	15345000000
1994-01-01	18106000000
1995-01-01	21636000000
1996-01-01	32067000000
1997-01-01	32110000000
1998-01-01	30741000000
1999-01-01	29031000000
2000-01-01	30825000000
2001-01-01	34729000000
2002-01-01	40719000000
2003-01-01	52394000000
2004-01-01	68535000000
2005-01-01	78365000000
2006-01-01	93613000000
2007-01-01	115361000000
2008-01-01	140800000000
2009-01-01	109647000000
2010-01-01	120902000000
2011-01-01	143396000000
2012-01-01	163221000000
2013-01-01	163371000000