Quarter	Millions of US Dollars
1982-01-01	0
1982-04-01	0
1982-07-01	0
1982-10-01	0
1983-01-01	0
1983-04-01	0
1983-07-01	0
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	32
1990-04-01	33
1990-07-01	132
1990-10-01	134
1991-01-01	96
1991-04-01	96
1991-07-01	0
1991-10-01	0
1992-01-01	0
1992-04-01	0
1992-07-01	0
1992-10-01	0
1993-01-01	87
1993-04-01	95
1993-07-01	95
1993-10-01	89
1994-01-01	0
1994-04-01	0
1994-07-01	51
1994-10-01	50
1995-01-01	57
1995-04-01	76
1995-07-01	17
1995-10-01	18
1996-01-01	31
1996-04-01	14
1996-07-01	0
1996-10-01	19
1997-01-01	116
1997-04-01	98
1997-07-01	144
1997-10-01	113
1998-01-01	320
1998-04-01	398
1998-07-01	533
1998-10-01	536
1999-01-01	286
1999-04-01	269
1999-07-01	241
1999-10-01	439
2000-01-01	631
2000-04-01	778
2000-07-01	751
2000-10-01	865
2001-01-01	729
2001-04-01	521
2001-07-01	400
2001-10-01	88
2002-01-01	36
2002-04-01	184
2002-07-01	300
2002-10-01	729
2003-01-01	941
2003-04-01	1059
2003-07-01	1004
2003-10-01	583
2004-01-01	575
2004-04-01	340
2004-07-01	280
2004-10-01	328
2005-01-01	224
2005-04-01	400
2005-07-01	500
2005-10-01	952
2006-01-01	960
2006-04-01	700
2006-07-01	795
2006-10-01	404
2007-01-01	306
2007-04-01	298
2007-07-01	111
2007-10-01	383
2008-01-01	383
2008-04-01	383
2008-07-01	383
2008-10-01	0
2009-01-01	0
2009-04-01	0
2009-07-01	0
2009-10-01	270
2010-01-01	270
2010-04-01	270
2010-07-01	380
2010-10-01	110
2011-01-01	110
2011-04-01	110
2011-07-01	472
2011-10-01	722
2012-01-01	1044
2012-04-01	1186
2012-07-01	723
2012-10-01	940
2013-01-01	615
2013-04-01	465
2013-07-01	1090
2013-10-01	625
2014-01-01	625
2014-04-01	1276
2014-07-01	651
2014-10-01	657
2015-01-01	657
2015-04-01	6
2015-07-01	6
2015-10-01	0
2016-01-01	0
2016-04-01	600
2016-07-01	605
2016-10-01	1058
2017-01-01	1072
2017-04-01	500
2017-07-01	1300
2017-10-01	1000
2018-01-01	1290
2018-04-01	1290