Year	US Dollars, Sum Over Component Sub-periods
1992-01-01	53707000000
1993-01-01	46741000000
1994-01-01	55480000000
1995-01-01	65834000000
1996-01-01	66780000000
1997-01-01	64479000000
1998-01-01	67730000000
1999-01-01	69229000000
2000-01-01	68685000000
2001-01-01	70147000000
2002-01-01	72267000000
2003-01-01	89736000000
2004-01-01	110775000000
2005-01-01	120935000000
2006-01-01	133266000000
2007-01-01	160751000000
2008-01-01	178489000000
2009-01-01	138016000000
2010-01-01	151893000000
2011-01-01	183427000000
2012-01-01	170830000000
2013-01-01	173841000000