Quarter	Millions of US Dollars
2001-10-01	10
2002-04-01	-11
2003-01-01	9
2003-10-01	-2
2004-01-01	-7
2006-01-01	16
2007-01-01	-18
2009-10-01	452
2014-04-01	359
2016-10-01	-324