Quarterly Millions of US Dollars
1977-01-01 148
1977-04-01 137
1977-10-01 59
1978-04-01 98
1979-01-01 60
1982-01-01 110
1982-04-01 12
1983-01-01 91
1983-10-01 137
1984-01-01 296
1984-04-01 -74
1984-07-01 100
1984-10-01 608
1985-01-01 475
1985-04-01 154
1985-10-01 71
1986-01-01 -200
1986-07-01 -375
1986-10-01 -675
1987-01-01 -256
1987-04-01 -201
1988-01-01 -62
1988-04-01 -117
1988-10-01 -15
1989-01-01 -3
1989-04-01 -59
1989-07-01 -104
1989-10-01 -138
1990-01-01 -3
1990-07-01 300
1990-10-01 601
1991-01-01 -65
1991-10-01 1024
1992-01-01 969
1992-04-01 1412
1992-07-01 1852
1992-10-01 211
1993-01-01 2549
1993-04-01 1250
1993-07-01 512
1993-10-01 446
1994-01-01 -1
1994-04-01 315
1994-07-01 1723
1994-10-01 -160
1995-01-01 4175
1995-04-01 83
1995-07-01 186
1995-10-01 -74
1996-01-01 -90
1996-04-01 4
1996-07-01 2693
1996-10-01 747
1997-01-01 1245
1997-04-01 738
1997-07-01 1466
1997-10-01 -69
1998-01-01 820
1998-04-01 -7
1998-07-01 1695
1998-10-01 659
1999-01-01 -1023
1999-04-01 1461
1999-07-01 -1324
1999-10-01 298
2000-01-01 -1609
2000-04-01 110
2000-07-01 1428
2000-10-01 247
2001-01-01 242
2001-04-01 240
2001-07-01 30
2001-10-01 -253
2002-01-01 3388
2002-04-01 -965
2002-07-01 -65
2002-10-01 482
2003-01-01 -1429
2003-04-01 5564
2003-07-01 12
2003-10-01 -616
2004-01-01 159
2004-04-01 5125
2004-07-01 -1432
2004-10-01 -339
2005-01-01 -1696
2005-04-01 166
2005-07-01 -175
2005-10-01 1399
2006-01-01 717
2006-04-01 -501
2006-07-01 -2762
2006-10-01 8065
2007-01-01 -954
2007-04-01 600
2007-07-01 -345
2007-10-01 -952
2008-01-01 7685
2008-04-01 2029
2008-07-01 4677
2008-10-01 382
2009-01-01 2617
2009-04-01 2486
2009-07-01 7126
2009-10-01 -115
2010-01-01 4211
2010-04-01 703
2010-07-01 -431
2010-10-01 -1003
2011-01-01 238
2011-04-01 4287
2011-07-01 -1906
2011-10-01 -243
2012-01-01 -1872
2012-04-01 -1219
2012-07-01 -6578
2012-10-01 218
2013-01-01 3043
2013-04-01 -6823
2013-07-01 -6832
2013-10-01 899
2014-01-01 -1068
2014-04-01 -280
2014-07-01 361
2014-10-01 -517
2015-01-01 -7308
2015-04-01 -1624
2015-07-01 -2791
2015-10-01 -531
2016-01-01 1002
2016-04-01 -1582
2016-07-01 -26
2016-10-01 -1672
2017-01-01 -5583
2017-04-01 -619
2017-07-01 -5892
2017-10-01 -147
2018-01-01 -5446
2018-04-01 -1607