Quarter	Millions of US Dollars
1995-10-01	0
1996-01-01	0
1996-04-01	0
1996-07-01	0
1996-10-01	0
1997-01-01	0
1997-04-01	0
1997-07-01	0
1997-10-01	188
1998-01-01	0
1998-04-01	0
1998-07-01	0
1998-10-01	0
1999-01-01	0
1999-04-01	32
1999-07-01	192
1999-10-01	233
2000-01-01	228
2000-04-01	233
2000-07-01	229
2000-10-01	85
2001-01-01	113
2001-04-01	120
2001-07-01	22
2001-10-01	122
2002-01-01	100
2002-04-01	100
2002-07-01	250
2002-10-01	150
2003-01-01	150
2003-04-01	150
2003-07-01	600
2003-10-01	600
2004-01-01	600
2004-04-01	600
2004-07-01	0
2004-10-01	0
2005-01-01	0
2005-04-01	0
2005-07-01	0
2005-10-01	200
2006-01-01	300
2006-04-01	300
2006-07-01	900
2006-10-01	1167
2007-01-01	1067
2007-04-01	1106
2007-07-01	507
2007-10-01	42
2008-01-01	95
2008-04-01	51
2008-07-01	51
2008-10-01	51
2009-01-01	135
2009-04-01	425
2009-07-01	457
2009-10-01	455
2010-01-01	386
2010-04-01	114
2010-07-01	96
2010-10-01	110
2011-01-01	34
2011-04-01	46
2011-07-01	46
2011-10-01	1391
2012-01-01	1394
2012-04-01	1357
2012-07-01	1360
2012-10-01	0
2013-01-01	60
2013-04-01	60
2013-07-01	60
2013-10-01	60
2014-01-01	0
2014-04-01	0
2014-07-01	0
2014-10-01	400
2015-01-01	400
2015-04-01	400
2015-07-01	400
2015-10-01	0
2016-01-01	0
2016-04-01	94
2016-07-01	98
2016-10-01	193
2017-01-01	195
2017-04-01	105
2017-07-01	100
2017-10-01	0
2018-01-01	200
2018-04-01	200