Quarter	Millions of US Dollars
1993-07-01	60
1996-07-01	-12
1997-01-01	-12
1997-10-01	-12
1998-01-01	-12
1998-07-01	-12
2004-10-01	100
2012-01-01	200
2013-04-01	100
2014-01-01	800
2014-10-01	-100
2017-01-01	-300