Quarterly Millions of US Dollars
1966-01-01 20
1967-10-01 15
1971-01-01 45
1971-04-01 23
1971-07-01 15
1972-01-01 120
1972-04-01 30
1972-07-01 25
1972-10-01 66
1973-01-01 73
1973-04-01 39
1973-10-01 46
1974-01-01 22
1974-04-01 50
1974-07-01 10
1974-10-01 73
1975-01-01 324
1975-04-01 376
1975-07-01 79
1975-10-01 335
1976-01-01 312
1976-04-01 162
1976-07-01 269
1976-10-01 439
1977-01-01 340
1977-04-01 374
1977-07-01 321
1977-10-01 434
1978-01-01 134
1978-04-01 440
1978-07-01 36
1978-10-01 76
1979-01-01 256
1979-04-01 826
1979-07-01 51
1979-10-01 389
1980-01-01 553
1980-04-01 895
1980-07-01 676
1980-10-01 593
1981-01-01 509
1981-04-01 278
1981-07-01 164
1981-10-01 425
1982-01-01 1128
1982-04-01 49
1982-07-01 340
1982-10-01 565
1983-01-01 1853
1983-04-01 -385
1983-07-01 29
1983-10-01 1123
1984-01-01 679
1984-04-01 1956
1984-07-01 893
1984-10-01 1681
1985-01-01 -1199
1985-04-01 2695
1985-07-01 53
1985-10-01 -1258
1986-01-01 924
1986-04-01 858
1986-07-01 841
1986-10-01 -274
1987-01-01 794
1987-04-01 249
1987-07-01 -111
1987-10-01 -383
1988-01-01 1529
1988-04-01 248
1988-07-01 580
1988-10-01 543
1989-01-01 1886
1989-04-01 271
1989-07-01 518
1989-10-01 2319
1990-01-01 1328
1990-04-01 -705
1990-07-01 551
1990-10-01 -188
1991-01-01 -64
1991-04-01 828
1991-07-01 230
1991-10-01 -1160
1992-01-01 -171
1992-04-01 1651
1992-07-01 1059
1992-10-01 1192
1993-01-01 3787
1993-04-01 -433
1993-07-01 7156
1993-10-01 4276
1994-01-01 5314
1994-04-01 6945
1994-07-01 4388
1994-10-01 1879
1995-01-01 -1113
1995-04-01 1297
1995-07-01 4232
1995-10-01 -900
1996-01-01 3568
1996-04-01 5509
1996-07-01 -932
1996-10-01 817
1997-01-01 837
1997-04-01 1281
1997-07-01 751
1997-10-01 -2491
1998-01-01 -4230
1998-04-01 3830
1998-07-01 -2128
1998-10-01 -4531
1999-01-01 -5519
1999-04-01 3934
1999-07-01 586
1999-10-01 468
2000-01-01 3652
2000-04-01 -741
2000-07-01 -107
2000-10-01 753
2001-01-01 521
2001-04-01 2337
2001-07-01 -2552
2001-10-01 689
2002-01-01 78
2002-04-01 4462
2002-07-01 1520
2002-10-01 -1822
2003-01-01 1872
2003-04-01 2738
2003-07-01 -402
2003-10-01 2279
2004-01-01 6656
2004-04-01 -880
2004-07-01 3229
2004-10-01 540
2005-01-01 6937
2005-04-01 14501
2005-07-01 2623
2005-10-01 433
2006-01-01 12368
2006-04-01 995
2006-07-01 139
2006-10-01 11182
2007-01-01 15626
2007-04-01 20721
2007-07-01 -1143
2007-10-01 10564
2008-01-01 -1458
2008-04-01 23916
2008-07-01 19419
2008-10-01 -9577
2009-01-01 23505
2009-04-01 30885
2009-07-01 20581
2009-10-01 10569
2010-01-01 28740
2010-04-01 -9653
2010-07-01 -586
2010-10-01 7992
2011-01-01 2903
2011-04-01 12947
2011-07-01 8308
2011-10-01 940
2012-01-01 17859
2012-04-01 13590
2012-07-01 8032
2012-10-01 19940
2013-01-01 17749
2013-04-01 3134
2013-07-01 16579
2013-10-01 -7588
2014-01-01 632
2014-04-01 7730
2014-07-01 6600
2014-10-01 10528
2015-01-01 -1182
2015-04-01 881
2015-07-01 7400
2015-10-01 9560
2016-01-01 829
2016-04-01 -7021
2016-07-01 3545
2016-10-01 7680
2017-01-01 12563
2017-04-01 2883
2017-07-01 1177
2017-10-01 -4077
2018-01-01 5161
2018-04-01 2994