Quarterly Millions of US Dollars
1971-01-01 30
1972-04-01 35
1974-04-01 24
1974-07-01 40
1974-10-01 20
1975-01-01 16
1975-04-01 234
1975-07-01 19
1976-01-01 108
1976-07-01 100
1976-10-01 97
1977-04-01 120
1977-07-01 106
1978-01-01 53
1978-07-01 24
1978-10-01 84
1979-01-01 100
1979-07-01 111
1979-10-01 -28
1980-01-01 -24
1980-04-01 -12
1980-07-01 10
1981-01-01 -108
1981-07-01 23
1981-10-01 28
1982-04-01 130
1982-07-01 -15
1982-10-01 700
1983-01-01 200
1983-04-01 472
1983-07-01 52
1983-10-01 161
1984-01-01 51
1984-04-01 100
1984-07-01 285
1984-10-01 378
1985-01-01 103
1985-04-01 121
1985-07-01 309
1985-10-01 -83
1986-01-01 516
1986-04-01 311
1986-07-01 530
1986-10-01 144
1987-01-01 399
1987-04-01 539
1987-07-01 95
1987-10-01 16
1988-01-01 -171
1988-04-01 331
1988-07-01 58
1988-10-01 745
1989-01-01 351
1989-04-01 -207
1989-07-01 -193
1989-10-01 79
1990-01-01 396
1990-04-01 -363
1990-07-01 205
1990-10-01 72
1991-01-01 578
1991-04-01 1560
1991-07-01 982
1991-10-01 369
1992-01-01 689
1992-04-01 -124
1992-07-01 95
1992-10-01 1301
1993-01-01 448
1993-04-01 1248
1993-07-01 2385
1993-10-01 253
1994-01-01 1802
1994-04-01 -79
1994-07-01 1012
1994-10-01 1740
1995-01-01 1516
1995-04-01 1818
1995-07-01 2372
1995-10-01 623
1996-01-01 2344
1996-04-01 4252
1996-07-01 1130
1996-10-01 289
1997-01-01 4366
1997-04-01 6103
1997-07-01 5149
1997-10-01 4734
1998-01-01 2649
1998-04-01 6773
1998-07-01 3104
1998-10-01 -817
1999-01-01 3047
1999-04-01 1451
1999-07-01 4382
1999-10-01 -917
2000-01-01 354
2000-04-01 6951
2000-07-01 1197
2000-10-01 11616
2001-01-01 907
2001-04-01 4428
2001-07-01 -1455
2001-10-01 2785
2002-01-01 460
2002-04-01 9659
2002-07-01 -882
2002-10-01 2819
2003-01-01 2277
2003-04-01 -1369
2003-07-01 7084
2003-10-01 12448
2004-01-01 31415
2004-04-01 9253
2004-07-01 17844
2004-10-01 19338
2005-01-01 9544
2005-04-01 3290
2005-07-01 24683
2005-10-01 685
2006-01-01 10162
2006-04-01 7992
2006-07-01 11130
2006-10-01 -3777
2007-01-01 22545
2007-04-01 15032
2007-07-01 20798
2007-10-01 -20420
2008-01-01 13932
2008-04-01 36708
2008-07-01 -4230
2008-10-01 -32412
2009-01-01 23897
2009-04-01 13483
2009-07-01 -160
2009-10-01 -10826
2010-01-01 13128
2010-04-01 -5703
2010-07-01 4559
2010-10-01 -14223
2011-01-01 3401
2011-04-01 -6177
2011-07-01 1897
2011-10-01 -3848
2012-01-01 10518
2012-04-01 -4970
2012-07-01 1848
2012-10-01 8590
2013-01-01 -14019
2013-04-01 -8565
2013-07-01 -13340
2013-10-01 1333
2014-01-01 5812
2014-04-01 23802
2014-07-01 22168
2014-10-01 1145
2015-01-01 9949
2015-04-01 23669
2015-07-01 7466
2015-10-01 -3517
2016-01-01 -2278
2016-04-01 25976
2016-07-01 1362
2016-10-01 -253
2017-01-01 -12222
2017-04-01 -3512
2017-07-01 2361
2017-10-01 3689
2018-01-01 11000
2018-04-01 662