Quarterly Millions of US Dollars
1971-01-01 86
1971-04-01 51
1971-07-01 24
1971-10-01 51
1972-01-01 121
1972-04-01 78
1972-07-01 117
1972-10-01 191
1973-01-01 35
1973-04-01 300
1973-07-01 54
1973-10-01 401
1974-01-01 109
1974-04-01 424
1974-07-01 65
1974-10-01 72
1975-01-01 103
1975-04-01 326
1975-07-01 138
1975-10-01 111
1976-01-01 100
1976-04-01 211
1976-07-01 110
1976-10-01 239
1977-01-01 218
1977-04-01 195
1977-07-01 172
1977-10-01 243
1978-01-01 387
1978-04-01 478
1978-07-01 375
1978-10-01 484
1979-01-01 232
1979-04-01 262
1979-07-01 117
1979-10-01 -35
1980-01-01 -18
1980-04-01 -43
1980-07-01 149
1980-10-01 -50
1981-01-01 25
1981-04-01 -60
1981-07-01 80
1981-10-01 -48
1982-01-01 -21
1982-04-01 98
1982-07-01 -66
1982-10-01 94
1983-01-01 134
1983-04-01 101
1983-07-01 40
1983-10-01 16
1984-01-01 -17
1984-04-01 234
1984-07-01 149
1984-10-01 340
1985-01-01 107
1985-04-01 753
1985-07-01 -24
1985-10-01 -1131
1986-01-01 -216
1986-04-01 -112
1986-07-01 5
1986-10-01 -259
1987-01-01 -204
1987-04-01 -230
1987-07-01 -365
1987-10-01 -509
1988-01-01 -186
1988-04-01 -251
1988-07-01 -88
1988-10-01 18
1989-01-01 -230
1989-04-01 -396
1989-07-01 141
1989-10-01 -68
1990-01-01 -182
1990-04-01 -764
1990-07-01 -418
1990-10-01 -285
1991-01-01 -311
1991-04-01 835
1991-07-01 -170
1991-10-01 114
1992-01-01 2409
1992-04-01 140
1992-07-01 -255
1992-10-01 -276
1993-01-01 -66
1993-04-01 -516
1993-07-01 56
1993-10-01 708
1994-01-01 722
1994-04-01 -422
1994-07-01 313
1994-10-01 700
1995-01-01 406
1995-04-01 169
1995-07-01 518
1995-10-01 623
1996-01-01 561
1996-04-01 133
1996-07-01 633
1996-10-01 2573
1997-01-01 -76
1997-04-01 1371
1997-07-01 1172
1997-10-01 729
1998-01-01 1815
1998-04-01 705
1998-07-01 525
1998-10-01 126
1999-01-01 1136
1999-04-01 2950
1999-07-01 545
1999-10-01 466
2000-01-01 1963
2000-04-01 1828
2000-07-01 1122
2000-10-01 88
2001-01-01 242
2001-04-01 2297
2001-07-01 2473
2001-10-01 536
2002-01-01 748
2002-04-01 2816
2002-07-01 21
2002-10-01 1150
2003-01-01 1370
2003-04-01 2266
2003-07-01 4572
2003-10-01 159
2004-01-01 5997
2004-04-01 1914
2004-07-01 956
2004-10-01 2134
2005-01-01 1661
2005-04-01 2570
2005-07-01 6828
2005-10-01 5793
2006-01-01 10779
2006-04-01 5755
2006-07-01 4562
2006-10-01 17787
2007-01-01 9372
2007-04-01 9449
2007-07-01 8921
2007-10-01 7467
2008-01-01 -479
2008-04-01 8984
2008-07-01 4095
2008-10-01 -4471
2009-01-01 -2682
2009-04-01 14618
2009-07-01 11951
2009-10-01 9939
2010-01-01 3300
2010-04-01 3604
2010-07-01 9425
2010-10-01 13086
2011-01-01 11615
2011-04-01 -174
2011-07-01 -1936
2011-10-01 17726
2012-01-01 8698
2012-04-01 -697
2012-07-01 8884
2012-10-01 21333
2013-01-01 11891
2013-04-01 5534
2013-07-01 7735
2013-10-01 13277
2014-01-01 2639
2014-04-01 14066
2014-07-01 5145
2014-10-01 3764
2015-01-01 14112
2015-04-01 13766
2015-07-01 1638
2015-10-01 5489
2016-01-01 7616
2016-04-01 34734
2016-07-01 27193
2016-10-01 48228
2017-01-01 16060
2017-04-01 24816
2017-07-01 -2267
2017-10-01 28450
2018-01-01 26788
2018-04-01 39943