Year	US Dollars, Sum Over Component Sub-periods
1999-01-01	-21445770000
2000-01-01	-24852230000
2001-01-01	-9516760000
2002-01-01	-2401560000
2003-01-01	1005040000
2004-01-01	-25140100000
2005-01-01	-52011990000
2006-01-01	-31757140000
2007-01-01	-19139670000
2008-01-01	-28761350000
2009-01-01	1834570000
2010-01-01	-52422090000
2011-01-01	-21652330000
2012-01-01	-34573960000
2013-01-01	-65454860000