Year	US Dollars, Sum Over Component Sub-periods
1988-01-01	-3734360000.0000000
1989-01-01	-3808310000.0000000
1990-01-01	-5048200000.0000000
1991-01-01	-5121070000.0000000
1992-01-01	-4834090000.0000000
1993-01-01	-3865370000.0000000
1994-01-01	-3804270000.0000000
1995-01-01	-3738390000.0000000
1996-01-01	-3699050000.0000000
1997-01-01	-3401840000.0000000
1998-01-01	-2824910000.0000000
1999-01-01	-2582980000.0000000
2000-01-01	-3590490000.0000000
2001-01-01	-3598330000.0000000
2002-01-01	-2729740000.0000000
2003-01-01	-2560440000.0000000
2004-01-01	-2136260000.0000002
2005-01-01	1657910000.0000000
2006-01-01	2827520000.0000000
2007-01-01	1789530000.0000000
2008-01-01	3572110000.0000000
2009-01-01	3220500000.0000000
2010-01-01	5868810000.0000000
2011-01-01	6833960000.0000000
2012-01-01	8260010000.0000000
2013-01-01	11689370000.0000000