Year	US Dollars, Sum Over Component Sub-periods
1995-01-01	12304150000
1996-01-01	10952500000
1997-01-01	9921850000
1998-01-01	9827800000
1999-01-01	9478320000
2000-01-01	4859480000
2001-01-01	5572120000
2002-01-01	9190760000
2003-01-01	8769000000
2004-01-01	8613900000
2005-01-01	3543290000
2006-01-01	2755120000
2007-01-01	1830290000
2008-01-01	-16096910000
2009-01-01	-6292020000
2010-01-01	-5032820000
2011-01-01	-14415450000
2012-01-01	-13665700000
2013-01-01	-11002290000