Quarterly Millions of US Dollars
1971-01-01 30
1971-04-01 35
1971-10-01 25
1972-01-01 75
1972-04-01 32
1972-07-01 101
1972-10-01 41
1974-04-01 17
1974-07-01 75
1974-10-01 25
1975-01-01 209
1975-04-01 271
1975-10-01 88
1976-01-01 93
1976-04-01 283
1976-07-01 400
1976-10-01 280
1977-01-01 68
1977-04-01 61
1977-07-01 435
1977-10-01 356
1978-01-01 584
1978-04-01 250
1978-07-01 371
1978-10-01 261
1979-01-01 268
1979-04-01 51
1979-07-01 13
1979-10-01 154
1980-01-01 225
1980-04-01 -105
1980-07-01 23
1980-10-01 30
1981-01-01 90
1981-04-01 53
1981-07-01 82
1981-10-01 327
1982-01-01 58
1982-04-01 167
1982-07-01 830
1982-10-01 301
1983-01-01 221
1983-04-01 65
1983-07-01 493
1983-10-01 692
1984-01-01 721
1984-04-01 784
1984-07-01 507
1984-10-01 778
1985-01-01 794
1985-04-01 1045
1985-07-01 1437
1985-10-01 1333
1986-01-01 2076
1986-04-01 1583
1986-07-01 1216
1986-10-01 2607
1987-01-01 1228
1987-04-01 1515
1987-07-01 1308
1987-10-01 262
1988-01-01 615
1988-04-01 1075
1988-07-01 1283
1988-10-01 2067
1989-01-01 2604
1989-04-01 1142
1989-07-01 1294
1989-10-01 -449
1990-01-01 174
1990-04-01 -229
1990-07-01 567
1990-10-01 -673
1991-01-01 -432
1991-04-01 -1020
1991-07-01 264
1991-10-01 -650
1992-01-01 -335
1992-04-01 -1558
1992-07-01 -1201
1992-10-01 -826
1993-01-01 -1180
1993-04-01 -349
1993-07-01 13793
1993-10-01 102
1994-01-01 1735
1994-04-01 -874
1994-07-01 975
1994-10-01 2574
1995-01-01 2802
1995-04-01 -1002
1995-07-01 3387
1995-10-01 1852
1996-01-01 -273
1996-04-01 1842
1996-07-01 3111
1996-10-01 3871
1997-01-01 3031
1997-04-01 3153
1997-07-01 -983
1997-10-01 -4046
1998-01-01 1915
1998-04-01 607
1998-07-01 1347
1998-10-01 -964
1999-01-01 3052
1999-04-01 -451
1999-07-01 5345
1999-10-01 1414
2000-01-01 6387
2000-04-01 5527
2000-07-01 3509
2000-10-01 1627
2001-01-01 -607
2001-04-01 5635
2001-07-01 3850
2001-10-01 -2548
2002-01-01 3311
2002-04-01 1645
2002-07-01 5784
2002-10-01 5541
2003-01-01 3681
2003-04-01 11421
2003-07-01 11795
2003-10-01 11175
2004-01-01 16505
2004-04-01 7264
2004-07-01 22675
2004-10-01 9841
2005-01-01 11867
2005-04-01 20404
2005-07-01 -2645
2005-10-01 17000
2006-01-01 25327
2006-04-01 17574
2006-07-01 16156
2006-10-01 26051
2007-01-01 22507
2007-04-01 26512
2007-07-01 15524
2007-10-01 -2711
2008-01-01 41694
2008-04-01 -5586
2008-07-01 -7290
2008-10-01 -15367
2009-01-01 -9926
2009-04-01 15298
2009-07-01 14536
2009-10-01 35800
2010-01-01 13334
2010-04-01 30
2010-07-01 11307
2010-10-01 12725
2011-01-01 -332
2011-04-01 14581
2011-07-01 -2286
2011-10-01 -6088
2012-01-01 12550
2012-04-01 -2320
2012-07-01 37112
2012-10-01 -2417
2013-01-01 5584
2013-04-01 401
2013-07-01 8867
2013-10-01 21282
2014-01-01 956
2014-04-01 6799
2014-07-01 1778
2014-10-01 3234
2015-01-01 9040
2015-04-01 8247
2015-07-01 -13506
2015-10-01 13895
2016-01-01 10701
2016-04-01 14388
2016-07-01 11358
2016-10-01 -9698
2017-01-01 715
2017-04-01 3620
2017-07-01 10864
2017-10-01 -3529
2018-01-01 10175
2018-04-01 -2876