Quarterly Millions of US Dollars
1971-01-01 45
1971-07-01 20
1972-01-01 82
1972-04-01 41
1972-07-01 20
1972-10-01 41
1973-01-01 12
1973-07-01 80
1973-10-01 39
1974-01-01 50
1975-01-01 22
1975-04-01 25
1976-10-01 42
1977-01-01 135
1977-04-01 128
1977-07-01 100
1979-04-01 15
1980-07-01 40
1982-01-01 -21
1983-10-01 50
1985-04-01 -64
1985-07-01 -50
1985-10-01 -314
1986-01-01 70
1986-04-01 -13
1986-07-01 10
1986-10-01 -47
1987-01-01 -18
1987-04-01 362
1987-07-01 31
1987-10-01 -5
1988-01-01 -24
1988-07-01 100
1988-10-01 77
1989-01-01 86
1989-04-01 60
1989-07-01 90
1989-10-01 75
1990-01-01 -3
1990-07-01 -100
1990-10-01 -22
1991-07-01 -100
1992-01-01 -2
1992-04-01 -75
1992-07-01 200
1992-10-01 100
1993-01-01 150
1993-04-01 5
1993-07-01 140
1993-10-01 379
1994-01-01 1166
1994-04-01 -23
1994-07-01 -9
1994-10-01 369
1995-01-01 157
1995-04-01 -191
1995-07-01 594
1995-10-01 1997
1996-01-01 421
1996-04-01 569
1996-07-01 1652
1996-10-01 1576
1997-01-01 1005
1997-04-01 52
1997-07-01 8
1997-10-01 -74
1998-01-01 2189
1998-04-01 1628
1998-07-01 2414
1998-10-01 148
1999-01-01 144
1999-04-01 -79
1999-07-01 463
1999-10-01 -305
2000-01-01 622
2000-04-01 1634
2000-07-01 -1039
2000-10-01 3189
2001-01-01 809
2001-04-01 779
2001-07-01 734
2001-10-01 -482
2002-01-01 -1645
2002-04-01 1513
2002-07-01 -531
2002-10-01 -1191
2003-01-01 -711
2003-04-01 -263
2003-07-01 -950
2003-10-01 3867
2004-01-01 -657
2004-04-01 168
2004-07-01 784
2004-10-01 261
2005-01-01 3458
2005-04-01 483
2005-07-01 -88
2005-10-01 1096
2006-01-01 -224
2006-04-01 1839
2006-07-01 3335
2006-10-01 -1873
2007-01-01 3241
2007-04-01 4415
2007-07-01 -383
2007-10-01 -1117
2008-01-01 992
2008-04-01 6262
2008-07-01 2583
2008-10-01 -898
2009-01-01 6943
2009-04-01 2986
2009-07-01 1433
2009-10-01 3206
2010-01-01 1713
2010-04-01 -293
2010-07-01 4937
2010-10-01 4126
2011-01-01 1979
2011-04-01 3836
2011-07-01 -359
2011-10-01 350
2012-01-01 -1665
2012-04-01 4227
2012-07-01 2238
2012-10-01 1080
2013-01-01 913
2013-04-01 4773
2013-07-01 3239
2013-10-01 581
2014-01-01 2642
2014-04-01 -1836
2014-07-01 -593
2014-10-01 2781
2015-01-01 581
2015-04-01 509
2015-07-01 -488
2015-10-01 829
2016-01-01 429
2016-04-01 -1647
2016-07-01 2071
2016-10-01 3348
2017-01-01 -2190
2017-04-01 -82
2017-07-01 2270
2017-10-01 353
2018-01-01 1164
2018-04-01 7135