Quarter	Millions of US Dollars
2004-10-01	0
2005-01-01	0
2005-04-01	0
2005-07-01	0
2005-10-01	0
2006-01-01	0
2006-04-01	0
2006-07-01	0
2006-10-01	0
2007-01-01	0
2007-04-01	0
2007-07-01	0
2007-10-01	0
2008-01-01	0
2008-04-01	0
2008-07-01	0
2008-10-01	100
2009-01-01	100
2009-04-01	100
2009-07-01	100
2014-04-01	0
2014-07-01	0
2014-10-01	0
2015-01-01	0
2015-04-01	0
2015-07-01	0
2015-10-01	0
2016-01-01	0
2016-04-01	0
2016-07-01	0
2016-10-01	0
2017-01-01	0
2017-04-01	0
2017-07-01	0
2017-10-01	0
2018-01-01	0
2018-04-01	175