Quarter	Millions of US Dollars
1996-04-01	139
1996-07-01	139
1996-10-01	8
1997-01-01	8
1997-04-01	8
1997-07-01	8
1997-10-01	8
1998-01-01	8
1998-04-01	8
1998-07-01	8
1998-10-01	8
1999-01-01	8
1999-04-01	8
1999-07-01	8
1999-10-01	8
2000-01-01	8
2000-04-01	8
2000-07-01	333
2000-10-01	333
2001-01-01	333
2001-04-01	333
2001-07-01	8
2001-10-01	8
2002-01-01	8
2002-04-01	8
2002-07-01	8
2002-10-01	8
2003-01-01	8
2003-04-01	242
2003-07-01	246
2003-10-01	266
2004-01-01	258
2004-04-01	616
2004-07-01	629
2004-10-01	689
2005-01-01	656
2005-04-01	8
2005-07-01	8
2005-10-01	12
2006-01-01	12
2006-04-01	8
2006-07-01	8
2006-10-01	0
2007-01-01	0
2007-04-01	0
2007-07-01	0
2007-10-01	0
2008-01-01	632
2008-04-01	631
2008-07-01	572
2008-10-01	557
2009-01-01	665
2009-04-01	707
2009-07-01	732
2009-10-01	720
2010-01-01	0
2010-04-01	552
2010-07-01	614
2010-10-01	601
2011-01-01	639
2011-04-01	0
2011-07-01	0
2011-10-01	0
2012-01-01	0
2012-04-01	0
2012-07-01	0
2012-10-01	0
2013-01-01	0
2013-04-01	0
2013-07-01	0
2013-10-01	0
2014-01-01	0
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	1054
2017-01-01	2138
2017-04-01	3282
2017-07-01	3361
2017-10-01	2199
2018-01-01	3732
2018-04-01	2666