Quarterly Millions of US Dollars
1969-10-01 50
1971-01-01 55
1971-04-01 2
1971-07-01 31
1971-10-01 56
1972-01-01 155
1972-04-01 166
1972-07-01 40
1972-10-01 306
1973-01-01 71
1973-04-01 146
1973-07-01 167
1973-10-01 210
1974-01-01 177
1974-04-01 340
1974-07-01 294
1974-10-01 271
1975-01-01 354
1975-04-01 113
1975-07-01 643
1975-10-01 1227
1976-01-01 2438
1976-04-01 875
1976-07-01 702
1976-10-01 1313
1977-01-01 487
1977-04-01 495
1977-07-01 980
1977-10-01 594
1978-01-01 524
1978-04-01 545
1978-07-01 226
1978-10-01 96
1979-01-01 363
1979-04-01 516
1979-07-01 215
1979-10-01 342
1980-01-01 268
1980-04-01 579
1980-07-01 -160
1980-10-01 670
1981-01-01 594
1981-04-01 815
1981-07-01 1541
1981-10-01 1591
1982-01-01 1402
1982-04-01 720
1982-07-01 1241
1982-10-01 599
1983-01-01 678
1983-04-01 638
1983-07-01 320
1983-10-01 -130
1984-01-01 622
1984-04-01 442
1984-07-01 163
1984-10-01 203
1985-01-01 25
1985-04-01 617
1985-07-01 423
1985-10-01 -129
1986-01-01 1042
1986-04-01 463
1986-07-01 490
1986-10-01 -274
1987-01-01 319
1987-04-01 568
1987-07-01 -261
1987-10-01 321
1988-01-01 -480
1988-04-01 284
1988-07-01 -119
1988-10-01 -350
1989-01-01 560
1989-04-01 216
1989-07-01 275
1989-10-01 -84
1990-01-01 1081
1990-04-01 1415
1990-07-01 -500
1990-10-01 862
1991-01-01 4087
1991-04-01 1962
1991-07-01 373
1991-10-01 2884
1992-01-01 1008
1992-04-01 2955
1992-07-01 1379
1992-10-01 167
1993-01-01 2558
1993-04-01 2359
1993-07-01 479
1993-10-01 -693
1994-01-01 1097
1994-04-01 -268
1994-07-01 1093
1994-10-01 162
1995-01-01 190
1995-04-01 -933
1995-07-01 1559
1995-10-01 -504
1996-01-01 -1674
1996-04-01 1124
1996-07-01 -92
1996-10-01 963
1997-01-01 560
1997-04-01 1699
1997-07-01 457
1997-10-01 639
1998-01-01 109
1998-04-01 3077
1998-07-01 2048
1998-10-01 265
1999-01-01 -1620
1999-04-01 2483
1999-07-01 3321
1999-10-01 204
2000-01-01 273
2000-04-01 152
2000-07-01 2598
2000-10-01 -415
2001-01-01 4231
2001-04-01 4901
2001-07-01 2662
2001-10-01 4029
2002-01-01 2763
2002-04-01 -35
2002-07-01 93
2002-10-01 -1376
2003-01-01 1081
2003-04-01 385
2003-07-01 -697
2003-10-01 5070
2004-01-01 -521
2004-04-01 494
2004-07-01 1742
2004-10-01 3020
2005-01-01 -153
2005-04-01 1731
2005-07-01 -1198
2005-10-01 642
2006-01-01 -1290
2006-04-01 -2081
2006-07-01 1876
2006-10-01 2682
2007-01-01 4235
2007-04-01 2710
2007-07-01 3234
2007-10-01 5073
2008-01-01 -4893
2008-04-01 8855
2008-07-01 7262
2008-10-01 -971
2009-01-01 4140
2009-04-01 10699
2009-07-01 3676
2009-10-01 3845
2010-01-01 1505
2010-04-01 -98
2010-07-01 7285
2010-10-01 6111
2011-01-01 -258
2011-04-01 3463
2011-07-01 -5521
2011-10-01 3307
2012-01-01 3791
2012-04-01 3123
2012-07-01 5155
2012-10-01 7742
2013-01-01 3642
2013-04-01 7488
2013-07-01 5371
2013-10-01 10504
2014-01-01 6127
2014-04-01 2224
2014-07-01 3240
2014-10-01 7225
2015-01-01 12390
2015-04-01 -1743
2015-07-01 726
2015-10-01 1061
2016-01-01 -391
2016-04-01 2722
2016-07-01 1593
2016-10-01 6149
2017-01-01 10385
2017-04-01 5264
2017-07-01 5536
2017-10-01 3896
2018-01-01 3942
2018-04-01 1355