Quarterly Millions of US Dollars
1975-07-01 19
1976-01-01 28
1977-07-01 22
1980-07-01 10
1982-07-01 -15
1983-01-01 -8
1984-07-01 25
1985-07-01 -18
1985-10-01 38
1986-01-01 234
1986-10-01 150
1987-04-01 71
1987-07-01 -17
1989-01-01 40
1989-04-01 -26
1990-04-01 -77
1990-07-01 301
1990-10-01 -150
1991-07-01 -25
1992-07-01 200
1993-04-01 -200
1993-07-01 110
1994-04-01 123
1994-07-01 -123
1994-10-01 1086
1995-01-01 -4
1995-04-01 11
1995-07-01 8
1995-10-01 -388
1996-01-01 211
1996-04-01 349
1996-07-01 142
1996-10-01 190
1997-01-01 801
1997-04-01 603
1997-07-01 275
1997-10-01 546
1998-01-01 756
1998-04-01 29
1998-07-01 1277
1998-10-01 769
1999-01-01 1335
1999-04-01 153
1999-07-01 1514
1999-10-01 -1653
2000-01-01 -876
2000-04-01 534
2000-07-01 967
2000-10-01 1995
2001-01-01 827
2001-04-01 -532
2001-07-01 -2885
2001-10-01 -598
2002-01-01 -192
2002-04-01 -15
2002-07-01 -165
2002-10-01 -279
2003-01-01 -166
2003-04-01 -54
2003-07-01 -71
2003-10-01 -113
2004-01-01 50
2004-04-01 1056
2004-07-01 63
2004-10-01 -142
2005-01-01 -251
2005-04-01 -135
2005-07-01 284
2005-10-01 1574
2006-01-01 229
2006-04-01 1430
2006-07-01 679
2006-10-01 -26
2007-01-01 698
2007-04-01 1766
2007-07-01 -647
2007-10-01 696
2008-01-01 -552
2008-04-01 2517
2008-07-01 -93
2008-10-01 -741
2009-01-01 -1088
2009-04-01 638
2009-07-01 347
2009-10-01 728
2010-01-01 233
2010-04-01 596
2010-07-01 -114
2010-10-01 1246
2011-01-01 406
2011-04-01 -1075
2011-07-01 899
2011-10-01 1254
2012-01-01 1936
2012-04-01 1283
2012-07-01 763
2012-10-01 405
2013-01-01 2067
2013-04-01 -2459
2013-07-01 4738
2013-10-01 5683
2014-01-01 -437
2014-04-01 8576
2014-07-01 3298
2014-10-01 5683
2015-01-01 -689
2015-04-01 3255
2015-07-01 3386
2015-10-01 -710
2016-01-01 -1391
2016-04-01 1158
2016-07-01 536
2016-10-01 500
2017-01-01 14059
2017-04-01 -582
2017-07-01 8372
2017-10-01 -3062
2018-01-01 2705
2018-04-01 4715