Quarterly Millions of US Dollars
1971-01-01 10
1972-04-01 26
1973-01-01 23
1973-04-01 91
1974-01-01 5
1975-07-01 38
1975-10-01 19
1976-04-01 -8
1976-07-01 75
1976-10-01 115
1977-01-01 20
1977-04-01 -8
1977-07-01 58
1977-10-01 29
1978-07-01 17
1979-01-01 29
1979-07-01 932
1979-10-01 507
1980-04-01 9
1980-10-01 80
1981-01-01 78
1981-04-01 4
1981-07-01 -27
1981-10-01 38
1982-01-01 53
1982-04-01 50
1982-07-01 38
1983-01-01 191
1983-04-01 150
1983-07-01 60
1983-10-01 339
1984-01-01 124
1984-04-01 88
1984-07-01 443
1984-10-01 463
1985-01-01 428
1985-04-01 294
1985-07-01 599
1985-10-01 168
1986-01-01 1118
1986-04-01 712
1986-07-01 748
1986-10-01 526
1987-01-01 165
1987-04-01 62
1987-07-01 275
1987-10-01 -158
1988-01-01 96
1988-04-01 88
1988-07-01 88
1988-10-01 494
1989-01-01 -118
1989-04-01 46
1989-07-01 163
1989-10-01 43
1990-01-01 296
1990-04-01 1183
1990-07-01 -187
1990-10-01 201
1991-01-01 1021
1991-04-01 99
1991-07-01 -91
1991-10-01 400
1992-01-01 -52
1992-04-01 -62
1992-07-01 -357
1992-10-01 530
1993-01-01 -7
1993-04-01 431
1993-07-01 151
1993-10-01 593
1994-01-01 300
1994-04-01 246
1994-07-01 701
1994-10-01 1324
1995-01-01 1271
1995-04-01 985
1995-07-01 898
1995-10-01 -291
1996-01-01 -1117
1996-04-01 -76
1996-07-01 -1703
1996-10-01 -1427
1997-01-01 -178
1997-04-01 418
1997-07-01 1407
1997-10-01 556
1998-01-01 -458
1998-04-01 -1443
1998-07-01 -317
1998-10-01 -163
1999-01-01 -341
1999-04-01 -317
1999-07-01 393
1999-10-01 -1636
2000-01-01 200
2000-04-01 1123
2000-07-01 3658
2000-10-01 -2470
2001-01-01 8137
2001-04-01 3507
2001-07-01 -156
2001-10-01 -600
2002-01-01 3551
2002-04-01 -559
2002-07-01 -376
2002-10-01 595
2003-01-01 861
2003-04-01 656
2003-07-01 57
2003-10-01 320
2004-01-01 922
2004-04-01 1004
2004-07-01 2304
2004-10-01 -799
2005-01-01 460
2005-04-01 604
2005-07-01 -436
2005-10-01 583
2006-01-01 4976
2006-04-01 839
2006-07-01 -5135
2006-10-01 6373
2007-01-01 5495
2007-04-01 15035
2007-07-01 -1111
2007-10-01 4058
2008-01-01 -4506
2008-04-01 16296
2008-07-01 -2217
2008-10-01 21290
2009-01-01 9291
2009-04-01 18735
2009-07-01 1046
2009-10-01 7031
2010-01-01 6629
2010-04-01 3125
2010-07-01 8362
2010-10-01 -2887
2011-01-01 1260
2011-04-01 540
2011-07-01 -7696
2011-10-01 -818
2012-01-01 -7807
2012-04-01 3047
2012-07-01 2348
2012-10-01 258
2013-01-01 865
2013-04-01 2928
2013-07-01 8859
2013-10-01 3501
2014-01-01 -3857
2014-04-01 -821
2014-07-01 -163
2014-10-01 1549
2015-01-01 2334
2015-04-01 2478
2015-07-01 -640
2015-10-01 3874
2016-01-01 7726
2016-04-01 -265
2016-07-01 3607
2016-10-01 -322
2017-01-01 -2283
2017-04-01 1809
2017-07-01 1042
2017-10-01 -433
2018-01-01 -134
2018-04-01 -1211