Quarterly Millions of US Dollars
1966-01-01 20
1967-10-01 15
1971-01-01 15
1971-07-01 15
1972-01-01 120
1972-04-01 30
1972-07-01 25
1972-10-01 66
1973-01-01 81
1973-04-01 39
1973-10-01 46
1974-01-01 22
1974-04-01 50
1974-10-01 73
1975-01-01 308
1975-04-01 347
1975-07-01 79
1975-10-01 304
1976-01-01 275
1976-04-01 162
1976-07-01 269
1976-10-01 386
1977-01-01 341
1977-04-01 404
1977-07-01 351
1977-10-01 434
1978-01-01 81
1978-04-01 440
1978-07-01 36
1978-10-01 119
1979-01-01 256
1979-04-01 801
1979-07-01 55
1979-10-01 389
1980-01-01 604
1980-04-01 939
1980-07-01 676
1980-10-01 639
1981-01-01 576
1981-04-01 278
1981-07-01 164
1981-10-01 425
1982-01-01 1228
1982-04-01 124
1982-07-01 306
1982-10-01 570
1983-01-01 1843
1983-04-01 -415
1983-07-01 55
1983-10-01 1147
1984-01-01 749
1984-04-01 1956
1984-07-01 1009
1984-10-01 1901
1985-01-01 -1218
1985-04-01 3004
1985-07-01 289
1985-10-01 -1014
1986-01-01 999
1986-04-01 958
1986-07-01 1510
1986-10-01 143
1987-01-01 1649
1987-04-01 273
1987-07-01 -4
1987-10-01 -274
1988-01-01 1602
1988-04-01 479
1988-07-01 733
1988-10-01 1194
1989-01-01 2782
1989-04-01 930
1989-07-01 1126
1989-10-01 3045
1990-01-01 1495
1990-04-01 -109
1990-07-01 981
1990-10-01 128
1991-01-01 83
1991-04-01 1709
1991-07-01 148
1991-10-01 -1700
1992-01-01 -1078
1992-04-01 1871
1992-07-01 1346
1992-10-01 733
1993-01-01 3173
1993-04-01 -1027
1993-07-01 8723
1993-10-01 3653
1994-01-01 4811
1994-04-01 6621
1994-07-01 4053
1994-10-01 1602
1995-01-01 -1558
1995-04-01 1111
1995-07-01 4548
1995-10-01 -584
1996-01-01 2409
1996-04-01 5112
1996-07-01 -866
1996-10-01 581
1997-01-01 300
1997-04-01 457
1997-07-01 1124
1997-10-01 -2470
1998-01-01 -4482
1998-04-01 4692
1998-07-01 -1827
1998-10-01 -4702
1999-01-01 -4609
1999-04-01 4119
1999-07-01 3378
1999-10-01 -177
2000-01-01 4197
2000-04-01 339
2000-07-01 -1423
2000-10-01 3314
2001-01-01 1
2001-04-01 2842
2001-07-01 -2723
2001-10-01 2625
2002-01-01 -76
2002-04-01 3926
2002-07-01 1175
2002-10-01 -683
2003-01-01 2160
2003-04-01 335
2003-07-01 1214
2003-10-01 4801
2004-01-01 8277
2004-04-01 353
2004-07-01 2393
2004-10-01 3837
2005-01-01 4209
2005-04-01 15708
2005-07-01 4374
2005-10-01 -1078
2006-01-01 11946
2006-04-01 -314
2006-07-01 -803
2006-10-01 8193
2007-01-01 14467
2007-04-01 22469
2007-07-01 -2089
2007-10-01 9389
2008-01-01 -1508
2008-04-01 25154
2008-07-01 19595
2008-10-01 -12302
2009-01-01 25433
2009-04-01 30146
2009-07-01 20670
2009-10-01 8033
2010-01-01 28200
2010-04-01 -11278
2010-07-01 -2156
2010-10-01 8698
2011-01-01 6579
2011-04-01 20806
2011-07-01 15854
2011-10-01 -1406
2012-01-01 17311
2012-04-01 16273
2012-07-01 7430
2012-10-01 12277
2013-01-01 18007
2013-04-01 3481
2013-07-01 15835
2013-10-01 -10874
2014-01-01 1105
2014-04-01 807
2014-07-01 7233
2014-10-01 11401
2015-01-01 60
2015-04-01 -5
2015-07-01 8545
2015-10-01 10255
2016-01-01 -2189
2016-04-01 -7519
2016-07-01 -95
2016-10-01 4987
2017-01-01 15607
2017-04-01 3373
2017-07-01 -1417
2017-10-01 -5558
2018-01-01 6290
2018-04-01 6689