Year	US Dollars, Sum Over Component Sub-periods
1995-01-01	3130000000
1996-01-01	3016000000
1997-01-01	2716000000
1998-01-01	2602000000
1999-01-01	2325000000
2000-01-01	2208000000
2001-01-01	2150000000
2002-01-01	2433000000
2003-01-01	2852000000
2004-01-01	3466000000
2005-01-01	3996000000
2006-01-01	4481000000
2007-01-01	5675000000
2008-01-01	7239000000
2009-01-01	6020000000
2010-01-01	6083000000
2011-01-01	6732000000
2012-01-01	6531000000
2013-01-01	7124000000