Quarterly Millions of US Dollars
1969-01-01 27
1969-04-01 15
1969-10-01 50
1970-07-01 75
1971-01-01 75
1971-04-01 2
1971-07-01 55
1971-10-01 86
1972-01-01 155
1972-04-01 596
1972-07-01 203
1972-10-01 499
1973-01-01 105
1973-04-01 345
1973-07-01 217
1973-10-01 533
1974-01-01 456
1974-04-01 595
1974-07-01 439
1974-10-01 583
1975-01-01 730
1975-04-01 898
1975-07-01 1042
1975-10-01 2288
1976-01-01 3275
1976-04-01 1619
1976-07-01 1788
1976-10-01 2189
1977-01-01 1188
1977-04-01 1295
1977-07-01 1558
1977-10-01 1034
1978-01-01 1428
1978-04-01 1728
1978-07-01 752
1978-10-01 910
1979-01-01 1790
1979-04-01 715
1979-07-01 708
1979-10-01 402
1980-01-01 638
1980-04-01 1306
1980-07-01 -285
1980-10-01 729
1981-01-01 816
1981-04-01 2271
1981-07-01 2373
1981-10-01 3614
1982-01-01 3308
1982-04-01 2153
1982-07-01 2916
1982-10-01 1209
1983-01-01 1112
1983-04-01 2057
1983-07-01 251
1983-10-01 1126
1984-01-01 1479
1984-04-01 1209
1984-07-01 1229
1984-10-01 1106
1985-01-01 1277
1985-04-01 1288
1985-07-01 1871
1985-10-01 619
1986-01-01 3671
1986-04-01 3272
1986-07-01 3459
1986-10-01 2616
1987-01-01 516
1987-04-01 1072
1987-07-01 262
1987-10-01 1238
1988-01-01 -494
1988-04-01 1704
1988-07-01 2294
1988-10-01 1937
1989-01-01 3210
1989-04-01 299
1989-07-01 73
1989-10-01 825
1990-01-01 1835
1990-04-01 1376
1990-07-01 -613
1990-10-01 1877
1991-01-01 4517
1991-04-01 4484
1991-07-01 1308
1991-10-01 4204
1992-01-01 1379
1992-04-01 4041
1992-07-01 2397
1992-10-01 2286
1993-01-01 10267
1993-04-01 3192
1993-07-01 5594
1993-10-01 -340
1994-01-01 7781
1994-04-01 2826
1994-07-01 6326
1994-10-01 -706
1995-01-01 2035
1995-04-01 1741
1995-07-01 5770
1995-10-01 -653
1996-01-01 753
1996-04-01 1962
1996-07-01 2279
1996-10-01 3548
1997-01-01 3904
1997-04-01 4324
1997-07-01 2687
1997-10-01 -1420
1998-01-01 4973
1998-04-01 5394
1998-07-01 3743
1998-10-01 3983
1999-01-01 330
1999-04-01 7508
1999-07-01 695
1999-10-01 2125
2000-01-01 68
2000-04-01 -5003
2000-07-01 85
2000-10-01 -909
2001-01-01 3880
2001-04-01 3754
2001-07-01 3293
2001-10-01 6707
2002-01-01 7204
2002-04-01 2961
2002-07-01 5524
2002-10-01 3055
2003-01-01 -804
2003-04-01 9717
2003-07-01 4567
2003-10-01 11576
2004-01-01 -439
2004-04-01 -2528
2004-07-01 9537
2004-10-01 4884
2005-01-01 1424
2005-04-01 6534
2005-07-01 -2644
2005-10-01 9093
2006-01-01 4350
2006-04-01 -1960
2006-07-01 9284
2006-10-01 13755
2007-01-01 10597
2007-04-01 16045
2007-07-01 2728
2007-10-01 17864
2008-01-01 5458
2008-04-01 49436
2008-07-01 13850
2008-10-01 -9895
2009-01-01 12508
2009-04-01 24341
2009-07-01 3934
2009-10-01 24136
2010-01-01 7899
2010-04-01 28377
2010-07-01 18831
2010-10-01 22680
2011-01-01 11915
2011-04-01 21261
2011-07-01 -17
2011-10-01 16896
2012-01-01 26853
2012-04-01 -7783
2012-07-01 14582
2012-10-01 4452
2013-01-01 3676
2013-04-01 -8244
2013-07-01 42297
2013-10-01 27077
2014-01-01 8671
2014-04-01 13071
2014-07-01 16268
2014-10-01 2539
2015-01-01 25342
2015-04-01 -7189
2015-07-01 20198
2015-10-01 -4611
2016-01-01 19653
2016-04-01 25292
2016-07-01 14951
2016-10-01 -6314
2017-01-01 12737
2017-04-01 23073
2017-07-01 6870
2017-10-01 16900
2018-01-01 24039
2018-04-01 14651