Quarterly Millions of US Dollars
1980-07-01 25
1982-01-01 43
1982-04-01 20
1983-04-01 40
1983-07-01 20
1984-10-01 83
1985-01-01 116
1985-04-01 129
1985-07-01 294
1985-10-01 206
1986-01-01 353
1986-04-01 389
1986-07-01 329
1986-10-01 156
1987-01-01 192
1987-04-01 200
1987-07-01 216
1987-10-01 364
1988-01-01 230
1988-04-01 158
1988-07-01 239
1988-10-01 194
1989-04-01 154
1989-10-01 100
1990-07-01 -39
1991-07-01 143
1991-10-01 22
1992-01-01 -155
1992-04-01 48
1992-07-01 219
1992-10-01 156
1993-01-01 -290
1993-04-01 336
1993-07-01 1341
1993-10-01 678
1994-01-01 1472
1994-04-01 422
1994-07-01 1219
1994-10-01 668
1995-01-01 -142
1995-04-01 -237
1995-07-01 784
1995-10-01 -198
1996-01-01 -205
1996-04-01 -238
1996-07-01 1550
1996-10-01 725
1997-01-01 709
1997-04-01 2585
1997-07-01 398
1997-10-01 198
1998-01-01 379
1998-04-01 -451
1998-07-01 -931
1998-10-01 536
1999-01-01 -456
1999-04-01 263
1999-07-01 -211
1999-10-01 368
2000-01-01 -329
2000-04-01 49
2000-07-01 -306
2000-10-01 951
2001-01-01 -218
2001-04-01 1963
2001-07-01 -1317
2001-10-01 152
2002-01-01 1519
2002-04-01 -268
2002-07-01 -574
2002-10-01 -943
2003-01-01 -868
2003-04-01 336
2003-07-01 468
2003-10-01 2696
2004-01-01 -967
2004-04-01 -239
2004-07-01 1426
2004-10-01 3380
2005-01-01 518
2005-04-01 -79
2005-07-01 1262
2005-10-01 1302
2006-01-01 -35
2006-04-01 758
2006-07-01 -149
2006-10-01 889
2007-01-01 2289
2007-04-01 5439
2007-07-01 2707
2007-10-01 624
2008-01-01 525
2008-04-01 2705
2008-07-01 2447
2008-10-01 -539
2009-01-01 -1124
2009-04-01 582
2009-07-01 84
2009-10-01 1480
2010-01-01 2994
2010-04-01 3295
2010-07-01 7974
2010-10-01 10501
2011-01-01 11597
2011-04-01 20537
2011-07-01 5901
2011-10-01 7291
2012-01-01 11951
2012-04-01 19896
2012-07-01 5150
2012-10-01 18608
2013-01-01 21236
2013-04-01 29319
2013-07-01 14196
2013-10-01 34536
2014-01-01 33353
2014-04-01 52114
2014-07-01 29411
2014-10-01 47161
2015-01-01 20511
2015-04-01 35562
2015-07-01 9248
2015-10-01 35951
2016-01-01 -3082
2016-04-01 41006
2016-07-01 40432
2016-10-01 39122
2017-01-01 55536
2017-04-01 52537
2017-07-01 53171
2017-10-01 74574
2018-01-01 50541
2018-04-01 25295