Quarterly Millions of US Dollars
1988-07-01 4125
1988-10-01 187
1989-01-01 6781
1989-04-01 5978
1989-07-01 5218
1989-10-01 -636
1990-01-01 -565
1990-04-01 3013
1990-07-01 3868
1990-10-01 -1702
1991-01-01 4397
1991-04-01 -101
1991-07-01 -4573
1991-10-01 -2471
1992-01-01 2139
1992-04-01 944
1992-07-01 -784
1992-10-01 -1500
1993-01-01 -1657
1993-04-01 -2444
1993-07-01 -1281
1993-10-01 56
1994-01-01 3383
1994-04-01 -29
1994-07-01 273
1994-10-01 1452
1995-01-01 2918
1995-04-01 -1525
1995-07-01 5270
1995-10-01 4453
1996-01-01 3008
1996-04-01 1947
1996-07-01 1432
1996-10-01 5934
1997-01-01 -184
1997-04-01 5170
1997-07-01 3887
1997-10-01 1583
1998-01-01 1042
1998-04-01 7697
1998-07-01 4268
1998-10-01 7392
1999-01-01 4130
1999-04-01 5719
1999-07-01 6755
1999-10-01 6099
2000-01-01 4283
2000-04-01 1563
2000-07-01 738
2000-10-01 -1891
2001-01-01 4688
2001-04-01 721
2001-07-01 1272
2001-10-01 6512
2002-01-01 5159
2002-04-01 1719
2002-07-01 7234
2002-10-01 -1944
2003-01-01 4040
2003-04-01 8535
2003-07-01 8331
2003-10-01 12781
2004-01-01 14733
2004-04-01 3524
2004-07-01 11820
2004-10-01 14781
2005-01-01 15175
2005-04-01 10155
2005-07-01 2933
2005-10-01 14290
2006-01-01 10103
2006-04-01 21171
2006-07-01 11362
2006-10-01 13158
2007-01-01 12540
2007-04-01 30056
2007-07-01 80567
2007-10-01 51123
2008-01-01 28935
2008-04-01 32903
2008-07-01 7377
2008-10-01 47354
2009-01-01 -30889
2009-04-01 -11829
2009-07-01 -1466
2009-10-01 -6013
2010-01-01 -27342
2010-04-01 -8325
2010-07-01 -5662
2010-10-01 15555
2011-01-01 -11366
2011-04-01 7741
2011-07-01 18591
2011-10-01 -5882
2012-01-01 41557
2012-04-01 -4096
2012-07-01 8833
2012-10-01 -24390
2013-01-01 -15023
2013-04-01 13743
2013-07-01 -6734
2013-10-01 12329
2014-01-01 13932
2014-04-01 22671
2014-07-01 21430
2014-10-01 25254
2015-01-01 8230
2015-04-01 3560
2015-07-01 2282
2015-10-01 4835
2016-01-01 9744
2016-04-01 4231
2016-07-01 1317
2016-10-01 -10742
2017-01-01 9899
2017-04-01 -11170
2017-07-01 -7928
2017-10-01 6141
2018-01-01 8974