Year	US Dollars, Sum Over Component Sub-periods
1996-01-01	-857290000
1997-01-01	-1325630000
1998-01-01	-1459050000
1999-01-01	-1645380000
2000-01-01	-2368080000
2001-01-01	-3470140000
2002-01-01	-2983750000
2003-01-01	-2606730000
2004-01-01	-3698230000
2005-01-01	-4822370000
2006-01-01	-7927350000
2007-01-01	-9630390000
2008-01-01	-11428830000
2009-01-01	-12125810000
2010-01-01	-10527940000
2011-01-01	-11803480000
2012-01-01	-8917800000
2013-01-01	-7865540000