Quarter	Millions of US Dollars
1994-10-01	150
1995-01-01	150
1995-04-01	150
1995-07-01	150
1995-10-01	150
1996-01-01	150
1996-04-01	300
1996-07-01	300
1996-10-01	300
1997-01-01	450
1997-04-01	750
1997-07-01	750
1997-10-01	750
1998-01-01	750
1998-04-01	750
1998-07-01	750
1998-10-01	750
1999-01-01	750
1999-04-01	750
1999-07-01	750
1999-10-01	1185
2000-01-01	766
2000-04-01	755
2000-07-01	755
2000-10-01	755
2001-01-01	755
2001-04-01	755
2001-07-01	755
2001-10-01	605
2002-01-01	585
2002-04-01	585
2002-07-01	585
2002-10-01	439
2003-01-01	439
2003-04-01	439
2003-07-01	439
2003-10-01	293
2004-01-01	793
2004-04-01	793
2004-07-01	793
2004-10-01	646
2005-01-01	646
2005-04-01	646
2005-07-01	646
2005-10-01	500
2006-01-01	1300
2006-04-01	1300
2006-07-01	1300
2006-10-01	1300
2007-01-01	1300
2007-04-01	2050
2007-07-01	2050
2007-10-01	2050
2008-01-01	2050
2008-04-01	2050
2008-07-01	2050
2008-10-01	2050
2009-01-01	1550
2009-04-01	1550
2009-07-01	1550
2009-10-01	1550
2010-01-01	1550
2010-04-01	1550
2010-07-01	1550
2010-10-01	1550
2011-01-01	1550
2011-04-01	1550
2011-07-01	1550
2011-10-01	1550
2012-01-01	1550
2012-04-01	1550
2012-07-01	1550
2012-10-01	1550
2013-01-01	1550
2013-04-01	1550
2013-07-01	1550
2013-10-01	1550
2014-01-01	1550
2014-04-01	3550
2014-07-01	3550
2014-10-01	4550
2015-01-01	4550
2015-04-01	4550
2015-07-01	5050
2015-10-01	5050
2016-01-01	4550
2016-04-01	4550
2016-07-01	4550
2016-10-01	5550
2017-01-01	5550
2017-04-01	4800
2017-07-01	4800
2017-10-01	6300
2018-01-01	6300
2018-04-01	6300