Quarter	Millions of US Dollars
1983-10-01	0
1984-01-01	0
1984-04-01	0
1984-07-01	0
1984-10-01	0
1985-01-01	0
1985-04-01	0
1985-07-01	0
1985-10-01	0
1986-01-01	0
1986-04-01	0
1986-07-01	0
1986-10-01	0
1987-01-01	0
1987-04-01	0
1987-07-01	0
1987-10-01	0
1988-01-01	0
1988-04-01	0
1988-07-01	0
1988-10-01	0
1989-01-01	0
1989-04-01	0
1989-07-01	0
1989-10-01	0
1990-01-01	0
1990-04-01	0
1990-07-01	0
1990-10-01	0
1991-01-01	0
1991-04-01	0
1991-07-01	0
1991-10-01	0
1992-01-01	0
1992-04-01	0
1992-07-01	0
1992-10-01	80
1993-01-01	87
1993-04-01	95
1993-07-01	95
1993-10-01	0
1994-01-01	0
1994-04-01	0
1994-07-01	0
1994-10-01	0
1995-01-01	0
1995-04-01	0
1995-07-01	0
1995-10-01	0
1996-01-01	200
1996-04-01	200
1996-07-01	200
1996-10-01	200
1997-01-01	0
1997-04-01	50
1997-07-01	150
1997-10-01	150
1998-01-01	100
1998-04-01	235
1998-07-01	180
1998-10-01	285
1999-01-01	285
1999-04-01	187
1999-07-01	156
1999-10-01	10
2000-01-01	10
2000-04-01	176
2000-07-01	174
2000-10-01	770
2001-01-01	769
2001-04-01	605
2001-07-01	1063
2001-10-01	621
2002-01-01	698
2002-04-01	782
2002-07-01	1167
2002-10-01	1486
2003-01-01	1678
2003-04-01	2301
2003-07-01	2263
2003-10-01	2023
2004-01-01	1932
2004-04-01	1242
2004-07-01	1065
2004-10-01	800
2005-01-01	689
2005-04-01	816
2005-07-01	238
2005-10-01	1033
2006-01-01	1012
2006-04-01	1646
2006-07-01	1643
2006-10-01	926
2007-01-01	835
2007-04-01	81
2007-07-01	87
2007-10-01	0
2008-01-01	171
2008-04-01	161
2008-07-01	562
2008-10-01	588
2009-01-01	400
2009-04-01	414
2009-07-01	14
2009-10-01	14
2010-01-01	14
2010-04-01	600
2010-07-01	600
2010-10-01	600
2011-01-01	600
2011-04-01	0
2011-07-01	0
2011-10-01	260
2012-01-01	459
2012-04-01	461
2012-07-01	470
2012-10-01	186
2013-01-01	0
2013-04-01	0
2013-07-01	700
2013-10-01	700
2014-01-01	700
2014-04-01	700
2014-07-01	625
2014-10-01	625
2015-01-01	625
2015-04-01	625
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	400
2017-04-01	400
2017-07-01	400
2017-10-01	400
2018-01-01	0
2018-04-01	0