Year	US Dollars, Sum Over Component Sub-periods
1994-01-01	15435000000
1995-01-01	20205000000
1996-01-01	18665000000
1997-01-01	20025000000
1998-01-01	16456000000
1999-01-01	13351000000
2000-01-01	16230000000
2001-01-01	20572000000
2002-01-01	23497000000
2003-01-01	27122000000
2004-01-01	33287000000
2005-01-01	38745000000
2006-01-01	44716000000
2007-01-01	58145000000
2008-01-01	75468000000
2009-01-01	61429000000
2010-01-01	73682000000
2011-01-01	89972000000