Quarterly Millions of US Dollars
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 54
1987-10-01 63
1988-01-01 60
1988-04-01 55
1988-07-01 0
1988-10-01 0
1989-01-01 0
1989-04-01 46
1989-07-01 46
1989-10-01 46
1990-01-01 46
1990-04-01 0
1990-07-01 0
1990-10-01 0
1991-01-01 0
1991-04-01 83
1991-07-01 90
1991-10-01 99
1992-01-01 91
1992-04-01 0
1992-07-01 0
1992-10-01 93
1993-01-01 93
1993-04-01 239
1993-07-01 419
1993-10-01 349
1994-01-01 368
1994-04-01 212
1994-07-01 70
1994-10-01 46
1995-01-01 32
1995-04-01 22
1995-07-01 22
1995-10-01 12
1996-01-01 12
1996-04-01 18
1996-07-01 5
1996-10-01 2
1997-01-01 22
1997-04-01 22
1997-07-01 88
1997-10-01 82
1998-01-01 78
1998-04-01 82
1998-07-01 8
1998-10-01 8
1999-01-01 5
1999-04-01 15
1999-07-01 15
1999-10-01 15
2000-01-01 15
2000-04-01 20
2000-07-01 75
2000-10-01 75
2001-01-01 75
2001-04-01 70
2001-07-01 220
2001-10-01 240
2002-01-01 225
2002-04-01 220
2002-07-01 5
2002-10-01 0
2003-01-01 0
2003-04-01 10
2003-07-01 20
2003-10-01 20
2004-01-01 30
2004-04-01 20
2004-07-01 0
2004-10-01 14
2005-01-01 34
2005-04-01 14
2005-07-01 34
2005-10-01 20
2006-01-01 20
2006-04-01 345
2006-07-01 355
2006-10-01 335
2007-01-01 835
2007-04-01 760
2007-07-01 750
2007-10-01 825
2008-01-01 350
2008-04-01 305
2008-07-01 277
2008-10-01 277
2009-01-01 289
2009-04-01 620
2009-07-01 576
2009-10-01 980
2010-01-01 1630
2010-04-01 1113
2010-07-01 1413
2010-10-01 1013
2011-01-01 880
2011-04-01 1527
2011-07-01 1227
2011-10-01 1227
2012-01-01 1157
2012-04-01 497
2012-07-01 497
2012-10-01 515
2013-01-01 18
2013-04-01 768
2013-07-01 768
2013-10-01 1160
2014-01-01 1260
2014-04-01 1588
2014-07-01 1636
2014-10-01 1729
2015-01-01 1629
2015-04-01 551
2015-07-01 503
2015-10-01 840
2016-01-01 898
2016-04-01 1545
2016-07-01 1486
2016-10-01 1307
2017-01-01 1831
2017-04-01 1353
2017-07-01 1357
2017-10-01 1440
2018-01-01 919
2018-04-01 972