Quarterly Millions of US Dollars
1972-10-01 50
1974-04-01 17
1976-07-01 367
1976-10-01 11
1977-01-01 38
1977-04-01 37
1977-07-01 44
1978-01-01 114
1978-07-01 26
1978-10-01 76
1979-01-01 30
1979-04-01 28
1979-07-01 100
1980-07-01 71
1981-10-01 55
1982-01-01 30
1983-01-01 -17
1984-01-01 -21
1984-07-01 -34
1985-01-01 -31
1985-10-01 -57
1986-01-01 -16
1986-07-01 -100
1986-10-01 -84
1987-04-01 -70
1987-07-01 -12
1988-01-01 -106
1988-07-01 -32
1988-10-01 -50
1989-01-01 -55
1989-07-01 -70
1990-04-01 837
1990-07-01 -83
1991-10-01 -116
1992-01-01 -207
1992-10-01 3348
1993-01-01 150
1993-07-01 305
1993-10-01 454
1994-01-01 38
1994-04-01 405
1994-07-01 310
1994-10-01 329
1995-04-01 -76
1995-07-01 398
1995-10-01 162
1996-01-01 15
1996-04-01 556
1996-07-01 587
1996-10-01 1725
1997-01-01 954
1997-04-01 863
1997-07-01 1197
1997-10-01 -319
1998-01-01 812
1998-04-01 739
1998-07-01 -399
1998-10-01 -503
1999-01-01 1197
1999-04-01 754
1999-07-01 766
1999-10-01 361
2000-01-01 1574
2000-04-01 -316
2000-07-01 176
2000-10-01 -309
2001-01-01 -862
2001-04-01 266
2001-07-01 -190
2001-10-01 1216
2002-01-01 1641
2002-04-01 831
2002-07-01 449
2002-10-01 940
2003-01-01 883
2003-04-01 801
2003-07-01 497
2003-10-01 1381
2004-01-01 383
2004-04-01 143
2004-07-01 959
2004-10-01 -166
2005-01-01 1525
2005-04-01 684
2005-07-01 943
2005-10-01 -1117
2006-01-01 2521
2006-04-01 -528
2006-07-01 1401
2006-10-01 -773
2007-01-01 1455
2007-04-01 317
2007-07-01 -416
2007-10-01 -418
2008-01-01 219
2008-04-01 -1426
2008-07-01 154
2008-10-01 -275
2009-01-01 505
2009-04-01 834
2009-07-01 1244
2009-10-01 1730
2010-01-01 994
2010-04-01 -29
2010-07-01 681
2010-10-01 1098
2011-01-01 2001
2011-04-01 1075
2011-07-01 -400
2011-10-01 -950
2012-01-01 2487
2012-04-01 349
2012-07-01 -98
2012-10-01 1143
2013-01-01 -622
2013-04-01 1850
2013-07-01 -599
2013-10-01 500
2014-01-01 -200
2014-04-01 575
2014-07-01 -372
2015-01-01 2329
2015-04-01 -32
2015-07-01 345
2015-10-01 221
2016-01-01 575
2016-04-01 -650
2016-10-01 -714
2017-01-01 -832
2017-07-01 1800
2017-10-01 -968
2018-01-01 3661
2018-04-01 298